THCV235-Q_THCV236-Q_Rev.3.40_E
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2016 THine Electronics, Inc.
THine Electronics, Inc.
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Sub-Link Mode Setting
PDN1=1 setting makes Sub-Link active and two modes of Sub-Link operation are available. Sub-Link
operation mode is select by SUBMODE pin.
When SUBMODE=0, Sub-Link is 2-wire serial I/F Mode.
When SUBMODE=1, Sub-Link is Low Speed Data Bridge Mode.
SUBMODE must be same setting at the THCV235-Q and THCV236-Q.Bi-directional communication is done
between Sub-Link Master device and Sub-Link Slave device in both modes. MSSEL pin selects Master/Slave
side of Sub-Link and 2-wire serial interface in the devices. MSSEL must be different setting at the THCV235-Q
and THCV236-Q. See Table 25 about Sub-Link operation mode settings.
Table 25.
Sub-Link operation mode, Master/Slave Setting
SUBMODE MSSEL
Operation
Mode
Sub-Link
Master/Slave
0
0
2-wire serial I/F
Sub-Link Master (2-wire serial Slave)
1
Sub-Link Slave (2-wire serial Master)
1
0
Low Speed Data Bridge
Sub-Link Master
1 Sub-Link Slave
2-wire serial I/F Mode
2-wire serial I/F Mode enables register access, using GPIO (General Purpose Input/Output) pin and interrupt
function. Sub-Link Master device has 2-wire serial slave block and can be connected to HOST MPU, Sub-Link
Slave device has 2-wire serial master block and can be connected to remote side 2-wire serial slave devices.
HOST MPU can access register of Sub-Link Master device, Sub-Link Slave device and remote side 2-wire
serial slave devices.
2-wire serial I/F Device ID setting
AIN1 and AIN0 pins determine Device ID setting of the THCV235-Q and THCV236-Q. Only Sub-Link Master
device has AIN1 and AIN0 pin. AIN1 and AIN0 choose one of 4 addresses which give an identification address
to the THCV235-Q and THCV236-Q under 2-wire serial interface bus topology.
Table 26.
2-wire serial I/F Device ID select (Sub-Link Master device Only)
AIN1
AIN0
Device ID
0 0
0x0B
0 1
0x34
1 0
0x77
1 1
0x65