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A14
HDMI Consumer Electronics Control
HDMI CEC
OPCODE
VENDOR ID
Vendor Specific Data
Header (2 bytes)
Payload (fixed bytes : 3 bytes)
Checksum
(1byte)
command
Vendor
Command
With ID
VENDOR ID
(3bytes)
Set
ID
Payload
Type
Command
data #0
data #1
CS #0
Set DCR
0xA0
0x3C 0xE6
0x24
0
0xA0
0 : Off
1 : On
reserved
(0x00)
Header XOR
Payload
Ack Set DCR
0xA0
0x3C 0xE6
0x24
4
0xA0
0xE0 : OK
0xE1 : NG
reserved
(0xFF)
Header XOR
Payload
Read DCR
0xA0
0x3C 0xE6
0x24
1
0xA1
reserved
(0x00)
reserved
(0x00)
Header XOR
Payload
Ack Read DCR
0xA0
0x3C 0xE6
0x24
5
0xA1
0xE0 : OK
0xE1 : NG
0 : Off
1 : On
Header XOR
Payload
Read Sub
Version
0xA0
0x3C 0xE6
0x24
1
0xA2
reserved
(0x00)
reserved
(0x00)
Header XOR
Payload
Ack Read Sub
Version
0xA0
0x3C 0xE6
0x24
5
0xA2
0xE0 : OK
0xE1 : NG
(Version
No.)
Header XOR
Payload
Read Input
Resolution
0xA0
0x3C 0xE6
0x24
1
0xA3
reserved
(0x00)
reserved
(0x00)
Header XOR
Payload
Ack 1 Read Input
Resolution
0xA0
0x3C 0xE6
0x24
5
0xA3
Hwidth high
bit(15:8)
Hwidth low
bit(7:0)
Header XOR
Payload
Ack 2 Read Input
Resolution
0xA0
0x3C 0xE6
0x24
5
0xA3
Vhight high
bit(15:8)
Vheight low
bit(7:0)
Header XOR
Payload
Read Lamp on
time
0xA0
0x3C 0xE6
0x24
1
0xA4
reserved
(0x00)
reserved
(0x00)
Header XOR
Payload
Ack 1 Read Lamp
on time
0xA0
0x3C 0xE6
0x24
5
0xA4
lamp on
time high
bit(15:8)
lamp on
time high
bit(7:0)
Header XOR
Payload
Set RS232
0xA0
0x3C 0xE6
0x24
0
0xA5
0xA5
0 : Off
1 : On
Header XOR
Payload
Ack Set RS232
0xA0
0x3C 0xE6
0x24
4
0xA5
0xE0 : OK
0xE1 : NG
reserved
(0xFF)
Header XOR
Payload
Read RS232
0xA0
0x3C 0xE6
0x24
1
0xA6
0xA6
reserved
(0x00)
Header XOR
Payload
Ack Read RS232
0xA0
0x3C 0xE6
0x24
5
0xA6
0xE0 : OK
0xE1 : NG
0 : Off
1 : On
Header XOR
Payload