ZiLOG System 8000 - Page 268

HRM
SELECT
SIZE
SEEK
Zilog
03
OF
07
HRM
SELECT ERROR -- assume no driven uu
An error occurred when the SELECT command was
issued to the disk unit to be tested. uu is
replaced by the disk unit number (decimal). This
error may occur if no disk drives are selected or
if multiple drives are selected. This message is
also displayed if the SMD controller times out
after the SELECT packet command is issued.
DISK SIZING ERROR -- assume driven uu not formatted
The SMD controller could not size the drive, indi-
cating that the disk was probably not f?rmatted.
The disk unit to be tested replaces uu (decimal).
This error may occur if the disk was never format-
ted or if one or more sector headers have been
destroyed after the disk was formatted. This mes-
sage is also displayed if the SMD controller times
out after the SIZE packet command is issued.
After the start-up procedure, the following messages' may
appear if the SMD Controller does not respond within a rea-
sonable time after the diagnostic issues a packet command:
NO RESPONSE to controller command, SMD CMD = xxxx
SMD Controller did not respond to a command. The
command
written to the Command Register replaces
"xxxx" (hexadecimal).
NOTE
This message appears only if
with interrupts disabled.
commands in p10lled mode.
a command is sent
Only SMDMON can send
TIMEOUT waiting for Controller Not Busy, SMD CMD = xxxx
SMD controller did not complete a command in a
reasonable time. The command was issued in polled
mode. The command written to the SMD controller
Command Register replaces "xxxx" (hexadecimal).
A-37
Zilog
A-37