Download DHQ11 User Guide

APPENDIX B
FLOATING ADDRESSES
B.l FLOATING DEVICE ADDRESSES
On Q-bus systems a block of addresses in the top 4K words of address space is reserved for options with
floating device addresses. This range is from 177600108 to 177637768•
Options which can be assigned floating device addresses are listed in Table B-1. This table gives the
sequence of addresses for both UNIBUS and Q-bus options. For example, the address sequences could
be:
DJll
DR11
DQ11
DU11jDUVII
and so on.
Having one list allows us to use one set of configuration rules and one configuration program.
Table B-1
Floating Device Address Assignments
Rank
Device
Size
(Decimal)
Modulus
(Octal)
Address
1
2
3
4
5
DJll gap
DR1! gap
DQ11 gap
DUll, OUVII gap
DUPll gap
4
8
4
4
4
10
20
10
10
10
17760010
17760020
17760030
17760040
17760050
6
7
4
4
4
10
10
10 ***
17760060
17760070
17760100
10
LKIIA gap
DMC11jDMRli gap
DZl1jDZVlljDZS11jDZ32
gap
KMC11 gap
LPP11 gap
4
4
10
10
17760110
17760120
11
12
13
14
15
VMV21 gap
VMV31 gap
DWR70 gap
RLll, RLVl1 gap
LPAII-K gap
4
8
4
4
8
10
20
10
10 *
20 *
17760130
17760140
17760150
17760160
17760200
16
17
18
KWI1-C gap
VSV21 gap
RXlljRX211jRXVl1jRXV21
gap
4
4
4
10
10
10 *
17760210
17760220
17760230
8
9
B-1