MAI Basic Four 2000 Series, Service Manual

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BFISD 8079
d = drive, 0 or 1
s = Start/Stop, 0 or 1
BIT 7 6 5 4 3 2 1 0
Byte 0 0 0 0 1 1 0 1 1
Byte 1 0 0 d 0 0 0 0 0
Byte 2 0 0 0 0 0 0 0 0
Byte 3 0 0 0 0 0 0 0 0
Byte 4 0 0 0 0 0 0 0 s
Byte 5 0 0 0 0 0 0 0 0
Receive Diagnostic Result (Class 0, Opcode 1C) - This command sends analy-
sis data to the host (Central Microprocessor Board) after completion of a
SEND DIAGNOSTIC command. Bytes 3 and 4 designate the size of the avail-
able buffer (in bytes).
READ DIAGNOSTIC is used to transfer data to the host and must immediately
follow a SEND DIAGNOSTIC command, which initiates the dump action. Other-
wise, the command will be rejected.
The data length specified should be 104 (hex) or more; however, if a smal-
ler buffer is provided, only that much data will be transferred, and the
command will terminate normally.
d = drive, 0 or 1
BIT 7 6 5 4 3 2 1 0
Byte 0 0 0 0 1 1 1 0 0
Byte 1 0 0 d 0 0 0 0 0
Byte 2 0 0 0 0 0 0 0 0
Byte 3 Data Length (MSB)
Byte 4 Data Length (LSB)
Byte 5 0 0 0 0 0 0 0 0
The data received as a result of a dump will be formatted as follows (next
page):
9-39