THCV231_16 Datasheet, PDF (25/56 Pages) THine Electronics, Inc. – The THCV231 and THCV236 are designed to support video data transmission between the host and display.

Table 24. Remote side 2-wire serial slave register Read Procedure for 16bit register address
Step
Description
R/W Address
Set slave address of remote side 2-wire serial slave device (Low-order 7bits),
1
and enable this address (High-order 1bit).
W 0x04-0x0B
2 Write 1 or 0 and clear(auto clear) access status register (2WIRE_ACS_END_INT).
W
0x02 bit7
Set slave address of access target 2-wire serial slave (choose the value set in
3
W
0x04-0x0B)(Low-order 7bits), and set 1 to 0x20 bit7.
0x20
4 Set the byte number read from remote side 2-wire serial slave(Max 16byte).
W
0x22
Set the low-order bits([7:0]) of start address of remote side 2-wire serial slave register to
5
W
read.
0x29
Set the high-order bits([15:8]) of start address of remote side 2-wire serial slave register
6
W
to read.
0x2A
7 Write 1 to RD_START_16B. (Start read access to remote side 2-wire serial slave register) W
0x2C (*1)
2-wire serial slave of Sub-Link Master perform clock stretching until Sub-Link Slave
8
register access is completed. When read access is completed, SCL is released and read -
-
(*2)
data is stored in Sub-Link Master register (Address 0x10-0x1F).
When read access is completed, read data is stored in Sub-Link Master register (Address
8
0x10-0x1F) and 2WIRE_ACS_END_INT register value become 1 and interrupt occurs -
-
(*3)
(INT=H → L).
9 If read access was normally ended, read value should be “0x1”.
R
0x02
10 HOST MPU read data stored in Sub-Link Master register.
R 0x10-0x1F
11 Repeat from step2 to step10 if needed.
-
-
*1 It’s Prohibit that HOST MPU start access to Sub-Link Slave or remote 2-wire serial slave before the previous access to
Sub-Link Slave or remote side 2-wire serial slave is completed.
*2 When 2WIRE_MODE = 00 (Clock Stretching Mode)
*3 When 2WIRE_MODE = 01 (No Clock Stretching Mode)
THCV231_THCV236_Rev.2.30_E
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