THCV235-Q_THCV236-Q_Rev.3.40_E
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2016 THine Electronics, Inc.
THine Electronics, Inc.
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Security E
Through GPIO
Input to GPIO4 and GPIO3 of Sub-Link Master device is output from GPIO4 and GPIO3 of Sub-Link Slave
device respectively. Note that these GPIO signals can’t be transferred from Sub-Link Slave device to Sub-Link
Master device and Through GPIO function is available only when THCV235-Q is Sub-Link Slave and
THCV236-Q is Sub-Link Master and RXDEFSEL=0. Register settings are required. See Table 36.
It’s possible to confirm GPIO4 and GPIO3 input value to Sub-Link Master by register read (0x41
GPIO_INPUT_MONITOR). Each GPIO output signal goes to Low when Sub-Link communication fails.
Sub-Link communication status can be observed by register read (0x82 bit2 COMERR_INT).
When the THCV236-Q is Sub-Link Master and RXDEFSEL=1 (THCV236-Q has no GPIO4 and GPIO3 input
pin as Through GPIO), Through GPIO outputs of THCV235-Q (Sub-Link Slave) keep low.
*1 See Table 36
Figure 14.
Through GPIO (Only GPIO4 and GPIO3)
Table 36.
THCV235-Q, THCV236-Q(RXDEFSEL=0) Through GPIO register setting
Device
Sub-Link
Master/Slave
GPIO
Input/Output
Number
GPIO4 , GPIO3
Input/Output Configuration
(I:Input, O:Output)
Register Settings
GPIO Type
GPIO IO Direction
Input Output
GPIO4
GPIO3
Address
(HEX)
Value
(BIN)
Address
(HEX)
Value
(BIN)
THCV235-Q
Slave
0
2
O
O
0xC0
XXX11XXX
0xC3
XXX00XXX
THCV236-Q Master
2
0
I
I
0x40 XXX11XXX 0x43 XXX11XXX
