Sony VPL-VW70 - Manual (Page 6)

2
VPL-VW70
2-2. Command Block Format
The code from B0 to B7 as described below are transmitted.
START CODE : 0xA9 B0
B1
B2
B4
B3
DATA
ITEM NUMBER ACK / NAK ITEM NUMBER
SET / GET ACK
DUMMY DATA
CHECK SUM
END CODE : 0x9A
DATA
REPLY
B5
B6
B7
Transmission from
the Master side
Reception in
the Master side
Reception in the Master side
(With Data)
B0 START CORD
Common in the all FORMAT
B6 CHECK SUM
B1 to B5 are calculated by OR;
<Example of Calculation>
0xA9 1010 1001 0xA9 1010 1001
0xA9 1010 1001 0x9A 1001 1010
Answer 1010 1001 Answer 1011 1011
0xA9 0xBB
B7 END CODE
Common in the all FORMAT