Download STD 7000 7507 1/0 Rack Interface Card USER`S MANUAL

STD 7000
7507
1/0 Rack Interface Card
USER'S MANUAL
o
o
o
o
7507
1/0 Rack Interface Card
USER'S MANUAL
o
9/81
,ae
f\ iH
,
"4,$4.,,"; ''''
;;n:;:S,PJUlffftffiiJIiMJmZ@j@Qa&,JMhL4ALOO*=DlQ,n,rn:CG;UJdtI'-ii;'14@i,......il.MlIiililWiJAM&i______
=
7507 I/O MODULE MOUNTING RACK INTERFACE CARD USER'S MANUAL
TAB LEO F
SECTION 1
CON TEN T S
Product Overview
Block Diagram
SECTION 2
Functional Description
General Purpose Interface
SECTION 3
Mapping
SECTION 4
Address Decoder Operation
Changing the 7507's Port Address
SECT I ON 5
7507 Card Environmental Specifications
SECTION 6
Electrical Specifications
SECTION 7
Mechanical
SECTION 8
7507 Operating Subroutine Modules
SECTION 9
Maintenance
PRO-LOG CORPORATION A
FORM NO. 101105
REV
106394
A
SHT •
I
OF
1.
PRODUCT DATA SHEET - 7s07 I/O MODULE MOUNTING RACK INTERFACE CARD
A.
PRODUCT OVERVIEW
The 7S07 provides an interface between the STD BUS and the Industry
Standard I/O Module t10unting Rack (OPTO-22 Corp. or equivalent).
This interface card can control up to 24 AC or DC input or output
modules in any combination and position on the I/O Module Mounting
Rack. The I/O Module Mounting Rack may be separated from the 7S07
by up to ten feet (3.0Sm) of 50 conductor 'ribbon cable.
The 7S07 is also useful as a general purpose TTL interface card.
Three 8-bit read/write ports control 24 bidirectional signal lines.
In addition, an output port-controlled power source rated at +4.7SV at
SOOmA is provided. An LED assembly, visible from the card edge
moditors the state of the power source and the three signal lines.
Connection to the 7S07 is supplied through a SO-pin card edge connector.
Adjacent grounds are provided fo~ each signal line for use in ribbon
cable or discrete wire cable assemblies.
B.
PRODUCT FEATURES
Up to 24 I/O Modules per 7S07
Any Type of Module can be Controlled in any Combination and Position
Standard I/O Module Bus allows use of Industry Standard Industrial
I/O Module Mounting Racks.
Low Pass Input Filters for Noisy Industrial Environments
Single +SV Operation
Socketed ICs
C.
BLOCK DIAGRAM
IIIIODULE RACK flUS
STO BUS
DATA sue;
BUFFf>!
07-01
IOUp·
IOfIO·
INPUT
PORTS
r------,
110 BUFFERS
o-......---t
b---d~-'
~--<lI ~~T
~CODE
WR·
~~T
-_
RD·
~--a
A'·A,
~~--I
lylltEMT-
DECODE
I
I
IL
.....
______
ll00UU MCK
O----------~-----l
~wtA
,..,
INnAfACI CAM)
PRO-LOG CORPORATION
JI
A
106394
REV
A
SHT 2
OF
23
FORM NO. 101105
NTW#MWB q
b.-
2.
FUNCTIONAL DESCRIPTION
The 7507 uses the Industry Standard I/O Module Bus to communicate with the
I/O Module Mounting Rack. The bus consists of 24 bidirectional data lines
alternated with 24 ground lines, a switched +4.75/500mA power lead and a
ground power lead. These signals are routed over up to ten feet (3.0sW
of 50 conductor flat cable.
Each bidirectional data line controls one I/O module on the I/O Module
Mounting Rack., Since the I/O module may be an input or an output device,
each signal line must perform as an input or an output. This signal line
characteristic is achieved by the circuit shown in the Bidirectional I/O
Circuit diagram. (Section 2)
The output circuit capability is supplied through an output port register,
an open-collector inverting driver, and a pull-up resistor. There are no
programming constraints in the output mode; active high data is written
to the output port causing an output module on the I/O Module Rack to conduct.
Input circuit capability is provided through an inverting input port buffer
and a low-pass RC filter. The low-pass filter, combined with the Schmitttrigger characteristic of the input port buffer, removes noise-induced
voltage spikes from the input signal. The active condition of any input
module (high voltage present), appears as active-high data in the input port.
There is one programming constraint in the input mode: active-high data
cannot be written to the output port bit that is to be us~d a~ an inp~t port
bit. This constraint is required to disable the open-collector output drive
for that bit. Note: On system power up the SYSRESET* signal clears the
output port and puts the output drivers in the disabled state. Thus programming overhead is not required to select the input mode of operation.
The power needed to operate the I/O Module Mounting Rack is supplied by an
output port-controlled power source capable of providing 500mA. To disable
all input and output modules in the I/O Module Mounting Rack, this power
source should be switched off by setting the I/O Module Rack power disable
bit. This is useful when performing a test on the 7507. If the I/O Module
Rack is disabled, the 7507 may be tested by writing a value to an output port
and then reading the value back for verification. A time delay is required
before reading the value back to allow for the operation of the input filter.
Check the Switching Characteristics table for the correct time delay value.
To output power directly from the Vcc of the STD system to the I/O Module
Mounting Rack, it is possible to bypass the output port-controlled +4.7V
power source by moving the wire jumper from location SA to location SB
(see Component Placement diagram). Remove this jumper to disable the I/O
Module Mounting Rack supply completely. The state of the I/O Module Mounting Rack
current supply is indicated by the bottom LED (on~Vcc = +4.7V, off-+Vcc = +OV)
See the Component Placement diagram for LED placement information. (Section 7)
PRO-LOG CORPORATION
FORM NO. 101905
A
REV
106394
A
SHT
3
Of 23
GENERAL PURPOSE INTERFACE
The 7507 is useful as a general purpose TTL interface card. The ground-·
signal-ground of the I/O connectors allows minimum crosstalk between signal
lines for flat cable or twisted pair discrete wire cable assemblies for
interconnection between systems in electrically noisy environments.
Three LEDls are provided for use as general purpose status indicators. These
indicators may be accessed by writing the output port bits for module 23
(mod 23"~), modu 1e 22 (mod 22'''>, and modu 1e 21 (mod 2 F~) (on = act i ve ...·h i gh
output register data). See the Component Placement diagram for LED placement
information. (Section 7)
The bidirectional signal lines at the card edge connector are 'active-low on
both input and output. The signals are terminated with a lK pull-up resistor.
1----------------1
OUTI'UTOATA
OUTI'UT STROlE
-.---
o
0
-.- - - - - b
~
I
Vcc
IllOINOICATOROIIIIIOOll
11100 21 OUT~TS
I
I 1100 n. _
IL _ _ _ _ _ _ _ _ _ _ _ _ ---1I
Vcc
--4- . . . ~ ltOIRECTlONAl SIGNAL
o
,IYSRE"TO
-.
. . _ .. _ - - ..
~T~T
IUPYIR
~T
OATA
--4-
I
TJPlc.I Bidirectional 110 CtrcuH
PRO-LOG CORPORATION A
REV
106394
A
FORM NO. 101905
MAAlIfTMMMM#t4.MA 44A
a.....
SHT
4
OF 23
3.
MAPPING
The 24 bidirectional signals are accessed as three 8-bit input/output ports.
Note: The 24 position I/O Module Mounting Rack uses all three ports. The
16 position I/O Module Mounting Rack uses two ports. The 8 position rack
requires a single input/output port. See the Port Mapping diagram for port
assignments for all three configurations. The. I/O Module Mounting Rack power
supply uses the same l~bit output-only port for all three I/O Module Rack
configurations. With the exception of these differences, the three I/O
configurations program identically.
The I/O ports of the 7507 are selected by a decoded combination of address
lines A7 through AO. The 7507 is shipped with the port assignments shown
in the Port Mappping diagram. The user may change the port address assignments by changing jumper wires SW, SX, and SY. Refer to the Component
Placement diagram for the position of SW, SX, and SY. (Section 7)
07
PORT 53H-OUTPUT
~I~
/
/LED
06
05
04
03
+ - - - - - - - - - DON'T
02
01
l-~~---~
CARE - - - - - - - . - - - .
~__- L - - - - - -__- - - - - - -____----------------------~
PORT 53H-INPUT
< 4 - - - - - - - - - - - - - D O N ' T CARE - - - - - - - - - .
L -_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _oJ
POR r 52H-OUTPUT
PORT 52H-INPUT
2
3
I:]: H~ AI
PRO-LOG CORPORATION A
FORM NO, 101105
8 POSITION
106394
REV
A
SHT
5
OF
23
4.
ADDRESS DECODER OPERATION
Refer to the schematic, Document #105391
The 7507 uses four cascaded 74LS42 decoders (U2, U3, U5 and U6) to decode
address lines AO-A7. These decoders are enabled only when 10RQ* is active.
The WR* signal is used to gate the select strobes from US that control the
output ports. The RD* signal is used to gate the select strobes from u6
that control the input ports.
CHANGING THE 7507's PORT ADDRESS
Refer to the assembly diagram, Document #104392
Locate decoders U2 and U3 (74LS42) adjacent to the STD BUS edge connector.
Each decoder device has a dual row of pads which form decoder output select
matrices. Make one (and only one) connection to each of the matrices
adjacent to U2 and U3.
The decoder jumper pad numbering figure shows the numbering of the pads
adjacent to the decoder chips on the 7507. Also shown are the jumpers
(at X2 and Y4) which produce hexadecimal port addresses 50, 51, 52 and 53,
the selections made when the card is shipped.
~D
I
SY
U2
oooo~oo 0
0000
00 0
01t.'3~S. 7
I
sx
I
U3
I
OOIO OOO
00
«)
0000 0
012.3'\5b7
I
S\~
X:
o
D~CODER
u4
I
1
JUMPER PAD NUMBERING
~D
PRO-LOG CORPORATION A
REV
106394
A
6
OF 23
SHT
FORM NO. 101905
AMMi
i
WWAMW
UtW MPWMWMA4PMMM¢mmw 4@
¥4
4R'
4 4
;;
# 4 AMP?;?
4 ;
(~
The 7507 may respond, to the alternate D/:O address condition which is
determined by the state of 10EXP* signal. The 7507 can respond to an I/O
address when the I OEXP~'," is low when jumper SW is in the number "0" pos i t ion
(the position as shipped)~ The card will respond to an t/Q.address when
the 10EXP~'c is high when jumper SW is in the number "1" position. The 10EXP~''"
is normally held low by the CPU card.
The I/O address mapping and jumper selection table for 4 addresses per card
shows where to place jumper straps to obtain any four sequential port
addresses in the hexadecimal range OO-FF. Using the lowest of the 2 . . .,digit
hexadecimal addresses desired, find the most significant hexadecimal address
digit along this vertical axis, and the least significant hex digit on the
horizontal axis. For example, port addresses 50, 51, 52, and 53 are obtained
by connect~ng jumpers at X2'and Y4.
The only restriction that applies in address selection for the 7507 is the
lower of the four port addresses (50 as shipped) must occur only at every
fourth possible address. For example, the sequence 51, 52, 53 and 54 is
not allowed by the decoder.
The pad matrices adjacent to U2, U3,and u4 are on 0.10 inch (0.25cm) centers.
The jumper wires may be conveniently replaced by wirewrap post if frequent
address selection changes are anticipated.
(J~
MOlT
SIGNIFICANT
HEXADDRlIl
0
UAIT IIGNIFICANT . .X ADDIIUI
o
11 12 1:I • 15 1I 17 -L,jAI-
CID
I
XO
YO
XO
Yl
XO
Y2
XO
Y3
XO
Y4
XO
Y5
XO
Y6
XO
Y7
2
:I
Xl
YO
Xl
Yl
Xl
Y2
Xl
Y3
Xl
Y4
Xl
Y5
Xl
Y6
Xl
Y7
4
X2 YO
)(2
Yl
X2
Y2
X2
Y3
Y7
1
I'
.ftMIeR
_LaCT1ON
X.Y
!'..
5
X2
Y4
X2
Y5
X2
VI
X2
I
X3
YO
X3
Vl
X3
Y2
X3
Y3
X
7
X3
Y4
X3
Y5
X3
VI
X3
Y7
-,
A
X4
VO
X4
Y1
X4
Y2
X4
Y3
AND
X4
Y4
X4
Y5
X4
V6
X4
Y7
X5
YO
X5
Y1
X5
Y2
X5
Y3
X5
Y4
X5
Y5
X5
Y6
X5
Y7
C
D
X6
YO
X6
Y1
X6
Y2
XI
Y3
X6
Y4
X6
Y5
X6
YI
XI
Y7
,
X7
yo
X7
Yl
X7
V2
X7
Y3
X7
Y4
X7
Y5
X7
VI
X7
V7
-
E
Y
l.I
I/O Addr... Mapping And-Jumper Selection Table For .. Addr_.. Per Card
(JI
PRO-LOG CORPORATION A
FORM NO. 101105
REV
106394
A
SHT
7
Of
23
4~
5.
Zr:,07 CARD ENVIRONMENTAL SPECIFICATIONS
ABSOLUTE NON-OPERATING LIHITS
RECOMMENDED OPERATING LIHITS
PARAMETER
MIN
Free Air Temperature
Humidity
TYP
MAX
MIN
MAX
UNITS
25
55
-40
75
°c
95
0
95
%RH
0
CD
0
Not Spec i f i ~d - - - -
Shock
~
Vibration
~
- Not Specified
EMI
~
Not Specified
ESD
~
Not Specified - - -
CD
;>
?
--
~
~
Non-condensing relative humidity
40
4~
PRO-LOG CORPOR.ATION
A
106394
FORM NO. 101905
= = - i i i.."'.:M. A;g •• A P
,SZ4QW#W#4
an 4
4 q
1$
REV
A
SHT
8
OF
23
I
ELECTRICAL SPECIFICATIONS
6.
7507 1/0 Module Mounting Rack Interface Card Electrical Specifications
(-
.RECOMMENOF.D OPEnATING LIMITS
MNEM.
PARAMETER
ABSOLUTE NON-OPERATING LIMITS
·MIN.
TYP.
MAX.
MIN.
MAX.
UNIT
-
Vee
Supply voltage
4.75
5.00
5.25
0.0
7.00
Volt
TA
Free air temp.
0
25
55
-40
75
°C
User Interlace Electrical Characteristics Over Recommended OperaHng limits
MNEM.
MIN.
PARAMETER
c~rrent
VOL
Low level interface voltage (at 10mA
IOl
Low level interface current (at 0.70V level)
VO H
High level interface voltage
IOH
High level interface current (at 2.0V)
V EXT
Supply \oltage output to module rack
--I EXT
Supply current output to module rack
--
MAX.
UNIT
.80
Volt
20
mA
5.25
Volt
level)
4.75
mA
-3.0
-.
4.70
4.45
4.95
Volt
500
mA
~
sro
BUS Electrical Characteristics Over Recornmenrled Operating Limits
MNEM.
Icc
TYP.
MIN.
PARAMETER
.
Interfac~
TYP.
---~--
supply current-
.....
-.- :---.
750
-------
MAX.
UNIT
1000
mA
STD· BUS input load
(See STD BUS Pin list)
STD BUS output drive
(See, STD BUS Pin, list)
-t-
---.
'Includes SOOmA I02J to external I/O Module Mounting Rack
I
Switching Characteristics Over Recommended Operating Limits
MNEM.
TpHL
TplH
TpHL
TpLH
PARAMETER
PROPAGATION TIME
.
PROPAGI\TION TIME
.
FROM
STD DATA BUS
.
USERIFC
-
.
TO
TYP.
USER IFC
.
STD DATA BUS
.
PRO-LOG CORPORATION
FORM NO. 101105
MIN.
MAX.
UNIT
25
~SEC:
75
NSEC.
3
6
15
tJSEC.
3
6
15
j./SEC.
A
REV
10639 1•
A
~
SHT
9
OF 23
7.
MECHANICAL
Refer to the Component Placement diagram for component placement information.
The 7507 meets all STD BUS general mechanical specifications. The 7507
requires one card slot in a standard STD BUS card rack. The input connector
clearance requirements vary according to the specific connector used. A 50pin flat cable connector requires clearances of 0.250" on the component and
circuit side of the board.
Recommended flat cable card edge connectors include 3-M part number 3415-0001
or equivalent. This may be used with a polarizing key 3-M part 3439-0000 or
equivalent to avoid incorrect cable hook-up. A complete cable assembly may
be obtained from Pro-Log as RC50-6.
For discrete wire cable assemblies, a PC board edge connect6r with solder
tail connections may be used in conjunction with a cable hood assembly to
provide reliable, strain-relieved termination. The recommended 50-pin card
edge connector is a Viking part number 3VH25/IJN5. This connector is used
with a Viking Hood part number 036-0097-002 or equivalent. These components
may be obtained from Pro-Log as CS50.
POLY LED
~.~OD 23
MOO 22
MOD 21
CARD DECODE
Vo M(,)o..:.L£ RAQ..K YowC:R -
PIN 50
:)OOOGC~')OO
OOOOC':OOO
--".::;;.=-]
[-.--~~-~
sw
7
:,-4
~.
COMPONENT SIDE
-I
1/0 MODULE BUS
CARD EOGe
gg
CONNECTOR
KEY SLOT
BETWEEN ---.~t:=_
1121 AND #26
-~~~~-J
['-----
2.60"
PIN2
Component Placement
PRO-LOG CORPORATION
A
106394
RFV
SHTIO
Ii..
OF
23
FORM NO. 101905
==;M*UU;; QUiA ;:
ilkill:
&##4444441
',r
&S4.n
liS":
N!4rMiJiCUI0WM_"ijp;y;iGM ; 14Mt.\\.;;,"
i',·IiM;
aTD 7507 EDGE CO~mECTOR PIN LIST
PIN NUMBER
PIN NUMBER
'----OUTPUT (LSTTL
~--O-U-T'--P'--U-T--(-LS-T-T-L-O-RiVE) - -
DRIVE)
~i''-PUTilsTTL LOADS)
7Ni>UT(LSTTl LO~.O~
-----.----
r-----:-:-
~..-E_M_O_N._IC
__.__~--~--~--I~~-_+--~--~---~~MNEMONIC
~~_l TS . .
~OUNO
·5V
_!_
S-t-w
7
~S
1i
r----
;-- r-s-s r-a-'
"07'
~
06
5'6'tf"2
05
04'
1
~A 15
S5
14
---- ~ ~6
A14------- ---- - - '18
r-----------!----~-
f--.-.
2~
~~------- f - - f---
2
f-:2
____
~.
fA 10
A9
28
MEMRO-;------
30
-- -
32
1
5
~_.I-,:-S:-...;V:...-_ _ _ _ _~
03
!-9- "s-5--+--':"'-~-=0:":2------~
-!-il 55
01
~3~T 1 DO
'15 ~ --- -,--+-=A:..:7--------I
1
A6
f-- f---t---f--.'----.---~
..:~ __ r-~~5_ _~ ____ _
! _~~
26
A8
f- -RD'
1-- ___ ~_~_C_ ~~._~..!:.~_
..~ _ _ ~~Q. ~~OUNO
_ _ _ __
VC_C::_ f----I--2....
G N O . _~.
6
1
A2
f---.
r-:?7 r--
2 -+--A~'---'-~i9-r--'~-- AO
31
~:-=---------.I
1
WR'
---!-iI 33!--- r;--·~:..:..R.:....Q-'-----~
~6 I-js --r-,- '10ExP'----
ME~.-EX-:------'---
~;CSYNc:_---- ---t--!-~ii
37
A=E_FR
__E_S_H_'____--I
STAfUSO'
--'-,iQ
BUSRQ-;-------t---- .---
39
STATUS l'
--rau-:...S·.:...A:·K:...::.·-...:.....-----I
4-2' 4'!---
INTRQ'----·- - f - ,-Nf;;ilRQ-'-----
----
INTAK'
t-:is
WAITRQ'
~----~8 r:;7-f---~- -SYSRES~-----
CPSRESET"
- - - f - - --
254
~~V---. - - - -=~~~
--t----=-'----.----I
CLOCK'
OiJT-t--'f>co--------
~'--r--
50 49
--1- - ~1
5
G~--- ~--r-53
~C-I-·------~N--
~ux
44 43
46
~.---.--------.-
CNTtlL'
.,
A4
-t....;_-l..:A..:.:3=-_ _ _ _ _-f
23
~5
AUX GND
15-
~Ux-:V--
'OIlSignate$ Active Low Level Logic
Edge Connector Pin list
8
'3
10
1.-_ _ .._ _
=-_____ -----
12
:1
50
SO
1']
16
'3
'5
50
13
18
1:
50
~3
20
'9
21
50
13
50
50
50
13
so
13
-
•..
5
~
6
------.--.--
a .
-----_.. _._----9
3
10
..
11
_------
12
25
2J
29
-
50
13
32
31
50
13
15
34
33
50
13
36
35
50
13
16
--------
38
J7
50
13
_- ...10
--
13
:<9
50
13
.!1
50
13
44
.!3
50
13
46
.!5
48
-',
50
50
50
.!9
'3
--"3
---
~A
Interf~ce
13
---------
14
17
18
--------,---
19
- - -20
-------
21
-• - - -22~
--•
23
------
MODULE_RACK POWER
Pin List
PRO-LOG CORPORATION A
FORM NO. 101905
__ .-
26
28
:30
42
User
23
3
-----_.-4
------_.
13
14
22
24
.------------4--+--
50
REV
106394
A
SH T 11
Of 23
B. 750.7 aPERATING SUBRaUTINE MaDULES
This section provides flow diagrams and subroutines to operate your 750.7
card. These may be used intact, or used as models to construct subroutines
for a specific application.
The subroutines are written in BaBa-family assembly code and will execute
on BaBa, BaB5, and zBa processors. The memory addresses selected are
compatible with Pro-Logls 7Bal (BaB5A) and 7Ba3 (zBa) processor cards.
The 750.7 port addresses used are the address jumper selections made when
the 750.7 is shipped.
To use these subroutines in systems other than those described above,
the memory and/or I/O. port· addresses may require change for compatibility.
The flow diagrams presented can be easily translated into the as~embly code
used by any microprocessor since they show the steps required to achieve
750.7 operation without reference to a particular microprocessor.
The following subroutines are provided for use with the 750.7.
REGISTERS
CHANGED
NAME AND DESCRIPTIaN
FLaw
DIAGRAM
PRaGRAM
Page 14
Page lB
A
B
H
L
Page 15
Page 19
A
B
H
Page 16
Page 20.
(750.7)
This subroutine sets all outputs
to a predefined state. It also
initializes all variables used
by the other subroutines.
A
H
L
(SET A BIT)
This routine accepts a hex value
in the accumulator which corresponds to the I/O. module to be
turned on. If the I/O. module
number is out of range, the carry
flag will be set.
(CLEAR A BIT)
1'1
This routine accepts a hex value
in the accumulator which corresponds to the I/O. module to be
turned off. I f the I/O. modu 1e
number is out of range, the carry
flag will be set.
•
L
PRO-LOG CORPORATION A
REV
10.6349
A
SHT 12
OF
FORM NO. 101905
qqgp
&&JMM1lfIlI,M,fiI)ifi"*W;:;;Ii,' "';IAM;;; TQUiAP4 M,tiM • t4\ffiP,Ii#M'\' ,#1M ,;
23
continued
NAME AND DESCRIPTION
REGISTERS
CHANGED
FLOW
DIAGRAM
PROGRAM
A
B
H
Page 17
Page 21
(BIT CHANGED?)
This routine accepts a hex
value in the accumulator which
corresponds to the I/O module
to be tested. If the I/O
module number is out of range,
the carry flag will be set.
It returns with p=o if there
were no changes and P=l if the
addressed module did change
since the last test. The
Z flag = 0 if the bit is set
and Z=l if the input port is
clear
.L
C
D
F
c_
~
I
•
(J~
PRO-LOG CORPORATION
FOAM NO. 101805
A
106394
REV
A
SHT
Of
13
23
4~
INITIALIZE 7507
INITIALIZE
OUTPUT
PORTS
INITIALIZE
VARIABLES
4D
C!~J
7507 INITIALIZATION FLOWCHART
4~
PRO-LOG CORPORATION
A
REV
106349
A
FORM NO. 101905
ti1UlMM#W&Jg;,
.:u_n , 4
#M#¥M¥4M4W4M ££A#
4¥A4W.
SHT
OF
14
23
y
SET
OUTPUT 50
Y
rou;1f~
~---~
Y
SET
OUTPUT 52
SET BIT
IN MEMORY
7507 BIT SET FLOWCHART
PRO-LOG CORPORATION
FORM NO. 101905
A
106394
REV
SHT15
A
OF 23
CLEAR AN OUTPUT BIT
WHICH PORT
AND BIT
CLEAR BIT
PORT 50
CLEAR BIT
PORT 51
CLEAR BIT
PORT 52
SET ERROR
CLEAR BIT
IN MEMORY
7507 BIT CLEAR FLOWCHART
PRO-LOG CORPORATION A
REV
106394
A
sHTl6
OF 23
FORM NO. 101905
_a_a". tAW
$
g,
:iHAiMAq qU; 44444¥# ##
¥
.'_IIi\iNi$i44WM=u;i1#AJ##TJ,i
!r_".
0EST AN INPUT BIT
WHICH PORT
AND BIT
Y
~~SK
OFF BIT]
ON PORT 50
Y
MASK OFF BIT
ON PORT 51
Y
MASK OFF BIT
ON PORT 52
SET ERROR
COMPARE MEMORY
AND INPUT PORT
N
SET FLAG
NO CHANGE
7507 BIT TEST FLOWCHART
PRO-LOG CORPORATION A
REV
106394
A
SHT
OF
17
23
PROGRAM ASSEMBLY FORM
PRO-LOG CORPORATION
MNE~,~ONIC
H=X.!.DECIMAL
L1N=
P~GE
o
ACQ
ADR
00
1f-.5T;:;.
~~I
1
(1§.Q1J ___ .
MODIFIER
L-"D?1
"-L
-
O't.
f----
5
1)3
6
61".
-
7
~E.
L"DAI
9
])~
51
B
~E.
C
-
-
5~
-
OF
:tn
\-PA
\ 0
50
1
7'1
Z:"
I
I:
5\
I,'
;
~I
~ET
?QF<I
$~
-
52
lSE!
!,
50
~TAN
(tlcLl
\c...p
~..J..\ L:J
~\
5
'17
~T~N
(I-\-L-')
6
~:~
(.1-\ L..:J
7
1::'0
\ C_?
\PA
(!.. c~
£Qg.I
'/..'1-.
'LO
A
~
~ ~E.T
'I..'f...
4
52....
?DR.\ -F,{)
,!
So
3
77
~ gET
OPA
'D~
9
I
I
Ll:>A1
E
8
?Rnr:...t.t:l.t..A
J:NIT1AIJLE.
CPA
0
I
RMA~~
o'?A..
-
A
2
~
Xx.
'k'f....
8
COMMENTS
L1,)A, 1
4
DATE
TITLE
INSrR.
-
2
3
LABEL.
-
If")
\/n
?(')Q..."T
":,T·A\U~
!
!
!
ii
\PA
-
MEMORY
51
,I:,
I-i! I
5~
c;TA..~ f--~
QTS
--
J
~J,.
B
C
o
0
,
--
E
F
..-
I
o
106394
4m;;;¢ll ##44
44$ P
pg
18 of 23
44
j,
AM $ $4 ¢ 4
;_ _ *&1#11;4
$\I,M
¥~
, .•
- - - - - - - - - . - _ . " _ ' _ _ _ •• _ •• ~~~~M•• ~_ .......... _~~~_-_
••• .. __ •••• ,;.:.. . . . . . . . . . . . " .. "" .......... ~" _ _ - " ' - " ' - -.... _
PROGRAM ASSEMBLY FORM
PRO-LOG CORPORATION
I-'!:"ACECIM_A,LiNE
PAGE
:"l5TR
ADR
"!:JR
MNEMON!C
LAeEL
INSTR
-
1
,(SET t.. 13,\\)
c."D
2
-
4
L,-:bt'1
'2..1
5
-
6
7
8
05
9
CA.
IbQ..'B
J?
-
A
XX
C.A.LQ.ULA"TE
t-\L
'AX
RAM
c
1..?:l
D 05
E (I_A
Ie?
b0..B
jp
-
.!!F
~o
-1..~
2
05
\QP
c,1='_l
?A~E:.
~T
5
\~
-
6
00
~~O?
'S.Tc...
RTS
j
I
~
T-
B 50
So
-
5Q
ORA
~
0
J)'~
09A
E
60
6F
c..~
~~'-1t\l\U
+:-~'I)~~fuI)
\PA
-
--
__~:.5SJ;;ILlRN.~'l.':::lli._0..8.'iSR.'i SCT
A
LJ)h
c
~~T
i
!
\\-L
}!.,
:D5
'R/)I,"\l~E:
!
?ORT S2...
A
:t£?.cE£R :rio
"'ih
I
5\
1J~
?D8,'i 5Q
EA.(1\4
~l~\t:="'R
!
"f..\
-
4'/
Fr"Q
o
~IT
,
..jf>
9
A
I
GE)
~1
~ <:.J=T
I
I-tL
c...A.
QC\
-,-,
!
60
3
7
"BIT
I
l.I
4
8
~\h
~
1-.jDM P
PORT
'PI'\~T
,
(\N\-\\Q.\-\ LINE. 2\'
-
B
1
CO",'MENTS
JS
3
I
DATE
TITLE
MODIFIER
L])Al
~f.
1..\0
SE'T
-i>\"T
IN
_c.h\Ie~~T
~-
--
Lf\ \ C tL-_____
i
50
--
JP
----
1000c1:,7
~_-+-Gc-=~:-=-O--+---+----- __+-___ +--'==u~? jy~ -1E:_
~--+-~2-1 t-n
I
?O~\..\
5i
M
~':':A.~__(})_-'-.:\-\L..')L--_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _~
A
L'b'B
~--+-~3~~~.-~~~I__________--+_\~P-A~~------__----+~~--~E"T~~~~-~0T_~~~~\wc~'-~~\~___________~
~__-~~4~~------------4------+---~5~\-------++-__ --------_________________________________~
~--4__~5~3~~o~r----__------~O~R-~A~~---=B:--------- ~---------------------------------------------1
6
~~
~-+_--.:-7~5\
1--_1---=8_~. ~s
I
~A
I
__L_
l __________
I _________________________________________ ______
5\
+-T_ J P
J--
__
__
~--4_~94__--~I~-----------~----_4~U~p~~ l~~.-------------------------------------------------~--+_~A_1_---+------------+_----_+_----------~-----------------------------------------------__
B $
! 008,1 S?LD"'b __ ----'A-'--___.__-l-;;;.,---_-_~=-I-'t'_'_".:_:Jt:-___~_ll~J.L____,___________
i---- __
_!
~--+_-~c_1_~~')C
\P~A~_~----------,_+~~---S-~\
~i~~D~)\~U\___~&\~H __________ _
~--4_~4_~~~-------------1-----+---~6~~=------++-----------------------------------------__4
~--+_-~+=~1-----------~O~~A
~
(';~A
I.
!
LbA
62..
f-- 1\\ (
I
.
-.-------
~_~L::::..j'_______IH-I~~----_S"""""~b_\l__ j~fdAfLR,Y______________,__I
~--~-~_1_~~_+------------4~ORA
~
3
~'i
IS\'t:\N
C~,~._ _t_'1-----------------------------____
4 c...?L _______ -4 __R
-'-"-.',:.-::5"'---_+--_________ -1--------------------------------------1
~~ - - f - - - - - - - - - - -" 4 - - - - - - + _ - - - - - - - - + - - - - - - - - - , - - - - - - - - - - - - - - - -__________ _
e-
; _} -
~-+--
8
1--
9
~:-.----------+----4-------I------------------- ______-------------"'""'---
__ _ _ _ _ _ _ _ _
!
.. _ _ _ _ _ . ,
__
__+ _____--+__________ 1 - -_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
~---+-~A_1_-_+------------+_----~---------~T--------------------------------------____________ _
~.-+-I==C~:=--++-===~I:============~=====;~~~-~--:------~---~~-----~--~======.-~~-----------------,---~--- -----------~~---~-------~~--.~-_-_
~-~-~E-~--4-------------~-----_+-------------~--------'IF
106394
pg
19 of 23
-1
o
PROGRAM ASSEMBLY FORM
PRO-LOG CORPORA nON
MNEr~')N1C
HEXADEC:~.1AL
PAGE
ADR
Lit.::
~~
~O
L'!)
1
o
(c:.L£A.~ A ~ri)
c.::b
2
06
9
c..A. -
C
D
z..~
\C-P
06
l)Q..'£)
E
C-A.
J?
\3
1
~~
C.P-.
~Ol<..\
:?.'1
c..9
9
2..(:;
A
W1
B
::t>"b
I~
~'RE\0RN
STC,.
?DR\
~O"
-- .JS,~5
C-MA
'?0T
-.
Cb1L ---
e 50
ANA
03
o?t\
'C\ F
50
~\T~~~_O
-----
'f?
50
r------ -_.
--
--.
~
~
_.JP._,-.
-
UPD.c.,:n=_~£M
-
2
3
2.~
4
Lll
f---- ---
%""
t::: I l·
---
6
*;
--
51
ANA
D
-
1-..
?o~\
2..F
5'2.. ..
L\1
t!.r/\ 1\
L1:>'B
AF
1)~
\ PA.
~o
52,
A,a
f'ti-JA
2
:bD
6PA.
!1_~_ .uPl)A~i&-M
5
f',tJ A
Ao
..:l'L - - - - - - <2>T,tlli
I
91
\.) {YD p.;\E.
L..:DA
W,_f.~/\
~ D,-YT
~
f\
r
52..
1>
-
52..
4
I CC\
-----
-
1
6
~
--
~
-
e
3
J
O?A
.jp
E
-c...l£~£'L~:I.-
-
!>- c..3
D
A
~A
51
f..Q_
7
- ?OT ~~~~ D ____
~_A
.Jd)~
5 13)'t)
1i
IF~AL\D
50
- - --_ .. _._--------- ---------
I
Q.L£~':~u:L
-
D i p\P
Y.J..rnLC~R~_~ =
A
\PA
E
A~l~~
6'2..,*"
NO?
00
7
7
II
-
-
8
51~
I-tL
JP
--
5
B
'l,\
~()'R\
\~~
4
6
'ROL1TINE
,I)~!-_
2
3
'POIN IEl<.
~L
-
- - - - -~-
~ ~tT
'POR, 50"*
-
<3F
C\o
e.lEf:\R
:C:\:I
~\
-
B
~~
- c., 0 TD "? R()t)ER. I/o
"bQ..'5
'JP
A
~Cle.I
XX
'BbM ~AGE.
-
8
SCI
\-\L
-
7
o
C_A.L.c..uLAT~
If W'A-\~\-\ LJ~E.?'\
L'"D?l
2.\
6
r - - --
'/.."h
JS
-
4
5
COMMENTS
A 1.
-
3
DATE
TITLE
MODIFIER
INSTR
LABEL
::~STR.
AC.~
I
--
(1LE~iT
--------
--------
52..
....
(j·\-L)
~
fV'.
--------:B..LL __~K IN -b
{~)..-------<l-Fc. LE p..R_D_G=_-.-l~~\J.-=- M.CK '-i
.
-
..
'R\S
i
8
o
t---
AT
-J
--
B
-
c
o!
E
'BF
._1000012/77
106394
• •« ::'U2"
,
$. •
AM
,4\f4I#2# ¥444¢¢£S¢44M
»n
pg 20 of 23
PROGRAM ASSEMSLY FORM
PRO-LOG CORPOF\ATION
MNEMONIC
?AGE
ADR
l.III.::
AD."
1',;:-"
C!.o
~S
1
2
Q:)
LABEL
DATE
TITLE
C()~.·MENTS
INSTR.
Lb~A~l~
________~I____________________________________-;
xx
b\\ CAA~q~?
()
3
4
I
IL:t)?I
~\
5
'I.. X
6
7
8
C<
9
(t..
?ISo
A
B
~
__~~E~~(~~~,~____________~~\~~__-+___~~~I.______-++-____________________________________________~
C.F
It=!')
1
/")~
?\
\C!..?
5\
I!
i i
---~----------~;I~
~l
I
-+-~2 1~5 ____________-+--=-:b-=c..=-.'-D:_-_+f--_-=:~:=======~!+-11-_-_·-_-_-=-________________________________--1
~--+_~3+1~~~~~------------~J~P~-+--~C~\~-----~I~:----------------------__________.__________~
1--__
4
1--__~--5~--~
-
?T
6~~-____~I-+r-------------------------------------~
lt~____________________________________ _
NQ~~------------Li----.-------.-----------------------------~
6 00
::;: r----------{-~~--+------=1f'
~===~==~9~i:~·C0. ____P.I Gf)
~--C
I - -__-+---=..A:...;l,...-.-'..,
-
r-JO\'")._
~ ~.I ~: j-.-.----.- - - - - - - -~~
~===~~=~~~.+ -'I _(,.:-=~-·'-"'..-~·..- - - - - - - - - - - -
.
A
LJ1D
5r>.
l-'?-L-)T---R-'-IT--r-'M-'~ V, \~) B
_. ______________
~. ________._________________ _ , _ - - - - - _ _ !
=Tt
?'-:.:::-=y
b F
i
_.
-
.
i._
~!!:A;:J....CT.LLJt\~_________________________
-----------------------------.--=
'NPLrr__
_ ______________--'
o
.._-------------------------1
o
106394
pg
21 of 23
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - _. . ._-..-._..- - - ' -
o
o
o
REFERENCE ONLY
\.D
~
::t:>
z
I J\ ~!~. _I,~ ". ",' 'I_'.t_~
!'1\:
--i
l '.' J':\~~\
1·'1
.,/
Il'l
'~i
,
(.0 --
'~--' ,,'/
,VI
"I
HL(,,'4'
4
DI, (I~ - - - -
I
Ii.!I
I
IJ'
ll'j
(I,! __ l .. D'"
I~-
/
0\
r::-.
\ ,4j
I?
/
03
C!) -
02.
(~;---l
'..
,If',
,
LJO
'tI ---)/
1\'
I
/
-.- -
_<
,r~,~~:~ot
f.: \1~
___.
;5,c-,-J~
_
..
", (si)-,
pcr 0?\.J
1\3
~ ;~_-:,~-:>.~
"
I
G
U3
',I
~
,(_:,
",\),
,l:-
mH.!'I('')-----.....:: "\
i:J
(,Q
N
N
o
-T\
N
W
I
M
f.
I
i
~
--;","/'
.
/,
'.
1Ii'
&_-,/0 eM
__
1.__1 'II 1I 1--I~ A
Q
-0
Ufo "
1~--
I
II
I
I
I'
I'
,_,,,, ,1\" __. __,-0
". 'h
,_
- II
~I"
,
/
11\
"I
/1 " ,-,.
':,~;-7l,f~::.r;·~~::,
~ \.. .•.",' • "
'J,
I
I
'~,:
U'--"i'I!!"
(----' I"
11 "J'
\
---4-- J'
'-
"I;,.':"~
,-
~p:i-~l',!:~:::"'L
1.,::1"
>~
UI2
b
__
GfI-~!!,MOO \Bit
~
"j
~MOOI~1t
~~)
~.,--._',.:e:~~~r:';Rt~ I
t'---" .
~O(\
"1)16
0 '!~!~J - - - '~
!
Lii
"i If
~~:'~:'J
.
~MOO20~
,
opo-o
rjY-~
I
~,PAR~:; ']4o~
~5r\Ojxi_
i.o ---
I'"uS. J
~l
!I.
' I
'!,i',
,-
,> ..
I
3."
L I"
,
11 .. ,
I
-~---~j !,~
_ry
I
~14,=~:~~3 ;. -~10P0'7
i - · . O______
.
!r--~''L~IN,:'(:4'I~
j
!r---'
I ,"
..--...../!
'
1~"Aj I
t~':,'
0 f----/;
'1
...!1:~
V--"
r"
<":
:"
l ' . _ _ _ _ _ _ _ _ _ _ _ .. _
'.•• '. _..
'"1
t
~
"-~
RO?
Ul/':
'4:' "
I
.-J --~
i
, ..
"L\1.'O' -----
"'1, ~
"P""
,,;'
B!lO
'\ <,~
(~-,'
r-"~
It~~
,7_
4
'
, •':'_--.:'0
_
.____.
_
1
'~lt21r.,
,~~="
!
r ~ ,~,4_
<
Wll'(~')-----'~ ul,':i~~-----~t, --- ~__ - l J'!'> "I~":'
Snp.E~E~ ~;'~.,'"I:'')
<"
<" ...
J
~'~(',N.','~(~-F"'~' >lI'r , "14L~""
\J'jb~' ! I~
0"
W
\.D
n:lf,
(,,,,'l---.-. _.'/.
" ,;,
"I
' :_
_
_
-
'2
<}
)1 ¢
1\0'1
I
1
Y'(jI_' I
4
~
"""
" 0---".
r;
,~,.~_,
,
"~I(i\.'
,"J .,2 uii " ~
r'~"
,I
'H~.,
V
~-',;: ':'):~:'),
12
'"
OPI?_
~--:,
:%1 ",~~.'
~
I I ~,
i ,,'
'\:.~IF';~·-Yy.<)
I i ~' ~~\~r-----:::
~
____
~ a~7
.---~y~<)
'\H~I?"
,_~I'"I~
_~YSo ? I "
\, \ ___ Yl:
o
IJ~ ~
I . ,~ , '--J ~.,
1
I :
I~
I v--<I: ,. ,i
I ~:~ 'IN,. :. :: ./1"
r,
I'-~
rr---
II
"
~1r--"':'" ~ ,~ ~-_~Yl
(I, '--0
U'lf';t~
fo
~ .. _;_,_.J
.
0'
v:y--- I~I
_
,~
17
Ii
..
fT1
+5V
~ "'''''I L~'~
f'
,!PI·-nl
:,:, .',-~=-~,~ i II
I',
. ___ .. ,
CONDITI "lNINC,
'I/O CIRCUIT~
M.
~-'SRI-
IOI!EII._'lill)H>:·"S,
y
I
Q,i} ____1_4'!,t\J?'
\.I!'r
M
... ,,1
,7. __ .
z
n
~I{'NI\L
---,-
~
I
11','-0.01
0'''' 0 5 ""''''
".;
I'''~'.:>~\~ ~~:
" , ., ' "
" 6>-""
(\5
""-.1"""'!":';;'-.";·~1 I
l1<[9'"
',I 'I
.
(\6
t':.'.;o
",~,,,\;, ~ ';:Q~3..r
I,r
(r.h''---'O
I
--
I If)
If} - ---
<f')
\..,
~_',o
~,2-(" "1",--~-'
r)tt'\
/
'7
f
'1
D 1 (\t ~
~
7..
tv ,'1 - ' 1
\ I' <J.:~ ,
r-,
,~!l' T
t
::t:>
01-1
NlITTS
,
I
I
-
fT1
Z
.7. ....0 !'
,·1'' ' "'1
=~~~
l","", ""~"
:j::'l
l/
,- ~ -----<-- ..
_ fl_L_SEr II
1\' ,'"r'v\E\I.Y
)
RI~ ~'tlO~/..J
~)~~~
,e
100A
I'I\!.!'·}
~
5r>
.0--
'-.:c{'.l,_~.J;·i
®_DiJ
-l--{jj}~
~~~.
HJ0)
-'~~~~\-sO)
LI~T
NO.
1(l~~'11.
NO.
,o~,·,\"'~
l,;;·;t~~~;t~~:j :~~~:~~2rf~~'NG_1:;
:-p~o.=~-o~ ,CORPCRATlO~ __ 1
'I
'1"W"~' jll~'.':'.A 0 Tf053'11
1
I'"
5
6
1
8
4
3
2
1
ti~l':'-~'r1J
U
K(f
I
o
~
',,,I',
~
~
9
~fF
I,
,.. /
I
~----l
DETAIL-
A
.2!...
~~~~
7ft.C.!)'\.)
I
!
i
~~
rr.T=ti==,
o
:;.;~=~ ,--L=':c~~
F"~~
Ie;
.. ,,.,..,,,...
'=•..•.."'"
~
'2
4f\l(\'D
'-....
<1
[
sx
.
~. -..,..
1;00
I
g;1
WI
\..0 ,
·C~~
~.8
-~A'-L;9':Z;=11
J
74,S2'0
_ : _ ..........-:tIJ
r6:~~.~:-·~··
SY
l7~~.2 ~j
k~;
5S
I
'01
.01,
ZT
I
U4
;,)1
3J
~:"=:-:-~-"'~"-:ol
l'll
"I
'l:.
"":73
I
I)"
1C."'~"='7.=-=:':!J
I.:-<.A..U.-", u,j--·'·"--·'·Y
J
I>.
7'LSZ40
l::z:_-=-~=""""'"
rr::-'''-;':';~''-::'~
I~ 7'~S74
o
-n
,!I
cr~.dJ
-I
.,
:~~
IT;~=~r
me ,II
~c.-"""!'~_~"'_!":Y.-4J
1(.
~;:
•
,p
71
(O':.=::-:'=';::)
rf:'~:(i'~
~:.~
....n.J
RS----.-,
~~~~l
.::::J
;:
t (70 ~
r-~o-~-;.-·"
~:~ ~
r~,.:.:::._:_".zJ
R7
E:::.-:,,~,
0
!;:;;J
l~7;tJ
ff~ji/Ui-=-~
~~?'::,,7~:~:,j
E~~·8:.:.:. __~:_. ,~-'.:;--=::1
~~;~~.~
PO
~--;;-:-Q
~t26-:
b.9!';'
[~'-"-~!n
L:""==~
,,\\
(?';1
~
tgJ
'O=-"::';:!
~
REFERENCE ONLY
-?~
ur·~.~_
~~
RIO
r-.~:-:::l
E-' '-,.;-0 ~--::-=;:J
r-,
':SY 105392, __ -'
fI'IOr.::' ........:
L~~
~.1'r."
~.
0 2
QI
/
/
Ni
w'
'~
~"0J::3
:~~.0 ~tfiM~l~.
j
.::]
~a.~
. 7m4~J
~."-,, ~~~::.~...,..j
~._:;.~""~~."';~:~;-:\{~~
~~
r~~~~~~~l r :::;'::'=::;::'1
I;::;;~~.
I~ :.~:~:.~ ~ Lr;~~o__ ..JJ
".
,,~,
P7
r·.'
74LS<2.11
F~E '1E~;~_~
f-:.;
"" L~~~I
~ ~";=-~A~1
-I
I!.!-'-.
~. 74LS2<~11
1
"
1~,Y4t'1,':>'1"1i\1')
,7 h00Jl.lF ,'/4N,·,i.1
1'>1. ~.<;,I,B.1t
I'> 11K" RIC,. "J%
14
I
IK
W
"~,4.~,q,IO,
NUINO"K
.~rr=LD4r..4
~
N
f:::.
100:IJ,IF'f
wIT~ /lo,<.;SEMBL'f ~lV LUn:.R.
\.
,v"')~(Mf'>';,.""
..,.\. . ~.:t:"): . \jL'.::.<... ..:.
l'tl6C.E.OUkt5
r_-~\·.,<.V!'·
J.
·LE
'3
.: nF
5::--1
H
1(IUf-,
"./
~~~
I
Rff DfSIGNATION
.:~.• - ..•::;.:... ~- •.~
..• ~ ..;.:'Jc)VLr
SCH(fMTtC. "10. lo·,.",q\
A..., 1004.
~)v~r~ ..:\r-D.
l~.;;-I~,i~·-:-s·~~:~~·~~r-·~·~~J
o
r -. .- r 11
e:.,CYV
-PR·b-~i6G-··-COI{PORAT10N·
~~;~:'L~: ·::_~:.·~:~'::::-;:TA ~-~~\1-~~~7 j07-DO
Ir'CII_AT':':. ;'IN 1 0' cC:'~'_T~.(;YP)
~(JR
=.1
1.11
IT[M DfsCr.:PT!ON
6 IN".CAfE"; (J.THOOE f"N OF <-cOl.
/3. ropr Q ,r, ,IIN·"[·) ,I) /-r;')kf-'j~ 50.
D
U~,
t2.
I
II
10 IPI
A
';'I~ ,<\0
It.,
PMI':> LI,:>T N().\O'>3"'3
_. ________ ~_~_ _"._~
6 ....
__.___•..__ -__ .. 5_._ ._. . _........... . .___.___4. _ _ _J. ______..,..3_--.-
r~:-;-:;'~\;' ~-C0"H
.
,-'
1",~.<r'f"C[
.-
---
-D~-·· .--,fiii'Vo,
11'1":; ~( 1 I. I,,, I
2.._-..". .........
I}~),---:--.- ..~-----·-·
'''i;
r
o
r'-""HII'J(,
'":'''
o
----------~
•
o
•
o
o
USER'S MANUAL
2411 Garden Road
Monterey, California 93940
Telephone: (408) 372-4593
TWX: 910-360-7082
o
. . . . 800 9/81
,.