Avlink HDMI-E8 - Manual (Page 60)

Distribution Amplifier (DA)—User Manual
59
D-2 Device ACK Packet
When the device receives supported commands comes from the host, and then will
response with following ACK:
Table – ACK Type List
Ack Type Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 … Last Byte
Type A
AB CB
Type B
AB LB Index 1 Value 1 Index 2 Value 2 … CB
Type C
AB LB Data 1 Data 2 CB
Type D
AB LB INF OP IP Name 1
…
CB
Type E
AB LB EXINF VEINF AEINF PLUG
…
CB
D-2.1 ACK Type A
ACK Byte + CRC Byte (Total 2 Bytes)
Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
AB
ACC 0 0 Device ID (0 – 31)
CB
CRC
ACC: The devices acknowledge status. Accept or Reject.
1: device accepts this request. (ACK; acknowledge)
0: device rejects this request. (NAK; negative acknowledge)
) The device sends the Nak packet is always 2 bytes. (NAK + CRC)
0:
Reserve, Always 0.
1: Identifier, Always 1.
Device ID:
Device id ranges from 0 to 31. (Please refer to device’s user manual)
CRC: Device always sends the CRC code to follow the last byte.