Hatteland Display 13 inch - HD 13T21 STD (Widescreen) - Manual (Page 13)

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DOC101681-1- rev.2
13
8 and 13" DIS DDC Control
All intellectual properties belongs to Hatteland Display AS
3.3. DDC/CI Manufacture Specific Command ( 0xF3 Watchdog Function )
VCP Code value is 0xF3 that it is watchdog function control to bridge of DDC/CI
communication. That it is follow table read and write format with DDC/CI data communication.
Format is as below.
 Set Table Format:
6E 51 8N E7 F3
D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 CK
8N: DDC/CI data length
D0: Write Data Length (Send to watchdog board data)
D1: Sub Function ID (Watchdog board support function to register ID)
D2: Data (0) / High byte of word data
D3: Data (1) / Low byte of word data
.......
D9: Data (7)
CK: DDC/CI communication checksum
 Get Table Format:
6E 51 83 E2 F3
D0 D1 CK
D0: Read Data Length (Read data length from watchdog board side)
D1: Sub Function ID (Watchdog board support function to register ID)
CK: DDC/CI communication checksum
 Reply
6F 6E NN E4
D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 CK
D0: Read Data Length
D1: Sub Function ID (Watchdog board support function to register ID)
D2: Data (0) / High byte of word data
D3: Data (1) / Low byte of word data
.......
D9: Data (7)
CK: DDC/CI communication checksum
Manufacture Specific command detailed data as below.
 Firmware Information
VCP
Code
Sub-F Function Description
D
N
Type
R W
0xF3 0x00 a1) WD Firmware Version ( 100513R0V01 ) 11 RO
0xF3 0x01 a2) WD Firmware Mode Name ( WD Board ) RO
0xF3 0x03 a4) WD Firmware Model Identity ( WD Board ) 2 RO
3.3.1. Sub-Function: 0x00 Watchdog firmware version
Data array is ASCII char string return and 0x0A is end.
Command example:
[S] 6E [W] 51 84 E2 F3
0D 00 A7 [P]