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Appendix MV600/V620 ID Controller Protocol
401
Offset Contents (data format) Data
+0 Number of receive data
words (4 digits BCD)
0002 (fixed)
+1 Completion code
(2 digits Hexadecimal)
00: Normal termination
14: Auto or communications command processing
not executed
75: Cancelled before the end of expansion
command receive or before sync input went
active or before detection of the existence of
Data Carrier
76: Cancelled during read/write processing for Data
Carrier
Polling Auto-read Command Processing Cancel
(Sequence No. 544)
This sequence cancels polling auto-read processing.
Send Data Word Allocation (2nd Operand of PMCR)
First word of send
data
Number of send data words+0
+1
+2
+3
(Undefined) Unit No.
(Not used)
(Undefined) Head channel No.
Offset Contents (data format) Data
+0 Number of send data words
(4 digits BCD)
0004 (fixed)
+1 Unit No. (2 digits BCD) Arbitrary (However, there is a limit for the
maximum Unit No. depending on the
model)
+2 Not used
+3 R/W Head CH No. (1 digit BCD) R/W Head CH 1 designation: 1
R/W Head CH 2 designation: 2
The CD1D must be set to 1.
Receive Data Word Allocation (3rd Operand of PMCR)
Receive data
storage words
Number of receive data words+0
+1
(Undefined) Completion code
Offset Contents (data format) Data
+0 Number of receive data
words (4 digits BCD)
0002 (fixed)
+1 Completion code
(2 digits Hexadecimal)
75: Cancelled before communications processing
with Data Carrier
76: Cancelled after communications processing with
Data Carrier
Polling Auto-write Command Processing Cancel (Sequence
No. 545)
This sequence cancels polling auto-write processing
Send Data Word Allocation (2nd Operand of PMCR)
The send data word allocation is similar to that of Sequence No. 544 (Polling Auto-read Command Processing
Cancel)
Receive Data Word Allocation (3rd Operand of PMCR)
The receive data word allocation is similar to that of Sequence No. 544 (Polling Auto-read Command Processing
Cancel)