NEC LCD Monitor, Manual

Page: 118 / 137

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2) The monitor replies a written in result.
Header Message Check code Delimiter
SOH-'0'-'0'-Monitor ID-
'B'-'0'-'A'
STX-'C'-'B'-'0'-'9'-'0'-'1'-ST-ETX BCC CR
Header
SOH (01h): Start of Header
'0' (30h): Reserved
'0' (30h): Message receiver is the controller.
Monitor ID: Indicate a replying Monitor ID.
Ex.) When this byte is set to
‘
A
’
, replying monitor
’
s ID is
‘
1
’
.
'B' (42h): Message type is "Command reply".
'0'-'A'(30h,41h): Message length (10byte)
Message
STX (02h): Start of Message
'C'-'B'-'0'-'9' (43h, 42h, 30h, 39h): Setting Copy Reply
'0'-'1' (30h, 30h): Target Write
ST: Status
No Error : 00h (30h, 30h)
Error : 01h (30h, 31h)
ETX (03h): End of Message
Check code
BCC: Block Check Code
Refer to the section 4.5
“
Check code
”
for a BCC calculation.
Delimiter
CR (0Dh): End of packet