Microcode Data Format - Tandberg Data SLR7-140 PROGRAMMER Manual

Microcode Length
Load Length
Tandberg Data
While performing the save operation (during Flash PROM
programming), the Drive will not respond to any SCSI
activity except for a hard SCSI reset. A hard SCSI reset
will most likely make the save operation fail and the
Drive will then need servicing. This is not a recom-
mended procedure.
If the save operation fails, the Drive will indicate the
error with the front LED as in Selftest (see drive's
reference manual for details on the LED [1]). It will
not be possible to access the Drive via the SCSI-bus
after a save failure. The Drive needs to be serviced
since a power-up will not clear this error condition.
After the save operation, the Drive will generate a Unit
Attention condition - " Microcode Has Been Changed"
all Initiators
WRITE BUFFER command. For the Initiator that issued the
WRITE BUFFER command the Drive will generate a Unit
Attention condition - " Power-Up/Reset" .
The time required for saving the microcode (Flash PROM
programming) are:
Time for saving of the Microcode:
Typical: 45 sec
Maximum: 400 sec

31.9. Microcode Data Format

The microcode consists of a Microcode Header followed by
up to 1M bytes of microcode. The last 6 bytes of the
microcode are ECC bytes.
Byte Size
00 - 03 4
04 - 07 4
08 - n n - 8
n+1 - 1048752 up to 1MB
Table 31-3:
This 4-byte field holds the length of the microcode
including the header.
Microcode length + header length.
31-5 Tandberg SLR Product Line SCSI Functional Specifications
except the Initiator
Description
Microcode Length
Load Length
Internal Used Field
Microcode
Microcode Data Format.
Write Buffer
for
that issued the