Atlona AT PC81A User Manual
Page 8
7
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Serial String Mode
First byte
Transmission data amount (from 1
st
byte to last byte)
0x53
Check code
0x57
Check code
0x90
Check code
0x08
Check code
0xff
*Machine number
0x01
Command ID
…..
Command parameters
Last byte
Check sum (add from first byte to command parameters)
(a) Set Command:
Command Code
Response Function
DATA
*Check Sum
ACK
SET
0x09 0x53 0x57 0x90 0x08 0xff 0x02
*0x01~0x08
*0x4d~0x54
0xaa
Select input source
0x09: Command length
0x53 0x57 0x90 0x08: Check code
0xff :Machine number
0x02: Command ID
0x01~0x08: Selected input on AT-PC81A
0x4d~0x54: Check sum
ACK
0xaa: Header
0x09 0x53 0x57 0x90 0x08 0xff 0x07
0x01
0x52
0xaa
Set auto detect function
0x09: Command length
0x53 0x57 0x90 0x08: Check code
0xff :Machine number
0x07: Command ID
0x01/0x00: Enable/disable auto detect
function
0x52: Check sum
ACK
0xaa: Header