THCV231_16 Datasheet, PDF (19/56 Pages) THine Electronics, Inc. – The THCV231 and THCV236 are designed to support video data transmission between the host and display.

Read/Write access to Sub-Link Master Register
HOST MPU can directly access Sub-Link Master’s register by 2-wire serial I/F.
Register address of Sub-Link Master is from 0x00 to 0x7F. See Register Map for more information.
Sub-Link Master Device
Sub-Link Block
Sub-Link
Master
Register
(Address
0x00 – 0x7F)
2-wire
Slave
SD1(SCL)
SD0(SDA)
Host
MPU
LOCKN/MSSEL=0 AIN1,AIN0 = User Select
Figure 6. Host to Sub-Link Master Register access configuration
S
Device ID
W A Register address A
Write data #1
A
...
AP
S Start condition
P Stop condition
A ACK
A ^NACK
W Write command indicator
Access from 2-wire serial interface Master
Access from 2-wire serial interface Slave
Figure 7. 2-wire serial I/F write to Sub-Link Master register protocol
S
Device ID
W A Register address A Sr
Device ID
RA
Read data #1
A
...
AP
S Start condition
R Read command indicator
P Stop condition
W Write command indicator
A ACK
Access from 2-wire serial interface Master
A ^NACK
Sr Repeated start condition
Access from 2-wire serial interface Slave
Figure 8. 2-wire serial I/F read to Sub-Link Master register protocol
THCV231_THCV236_Rev.2.30_E
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