Download Debugging Package for Motorola 68K CISC CPUs User's Manual

Information Used by BO and BH Commands
IOSPRM and IOSEPRM
A Ò1Ó in a particular bit position indicates that the corresponding
parameter from the configuration area (CFGA) should be used to
update the device configuration. A Ò0Ó in a bit position indicates
that the parameter value in the current configuration will be
retained.
D
Table D-4. IOSPRM Parameter Mask Bit Definitions
Label
Bit
Position
Description
IOSRECB
0
Operating system block size.
IOSSPTB
4
Sectors per track.
IOSHDSB
5
Number of heads.
IOSTRKB
6
Number of cylinders.
IOSILVB
7
Interleave factor.
IOSSOFB
8
Spiral offset.
IOSPSMB
9
Physical sector size.
IOSSHDB
10
Starting head number.
IOSPCOMB
12
Precompensation cylinder number.
IOSSRB
14
Step rate code.
IOSRWCCB
15
Reduced write current cylinder number
and ECC data burst length.
IOSATW and IOSEATW
Contains various flags that specify characteristics of the media and
drive.
D-4