D-2 device ack packet – Avlink HX-341616 User Manual

Page 75

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Matrix Switcher Series—User Manual

74

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.

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