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reserved.
FIBOCOM SC138-
NA
Series Hardware Guide
50/88
Pin Name
Pin No.
Reset State
Interrupt Function
GPIO_113
212
B-PD:nppukp
NO
GPIO_117
218
B-PD:nppukp
YES
GPIO_119
219
B-PD:nppukp
NO
PM6125_GPIO_1
249
B-PD:nppukp
YES
PM6125_GPIO_2
245
B-PD:nppukp
YES
PM6125_GPIO_4
243
B-PD:nppukp
YES
B: Bidirectional digits with CMOS input.
H: High voltage resistance.
NP: pdpukp = no pull by default, with programmable options after the colon (:).
PD: nppukp = pull-down by default, with programmable options after the colon (:).
PU: nppdkp = pull-up by default, with programmable options after the colon (:).
KP: nppdpu = floating by default, with programmable options after the colon (:).
3.10
I
2
C
SC138 series modules have 5 sets of I2C interfaces, which can be used for TP, camera, sensor and
others respectively. The 5 sets of I2C interfaces are all open-drain outputs, and a pull-up resistor must be
added to the 1.8V power domain when in use. The I2C interface pin definition is shown in the following
table:
Table 3-13 I
2
C interface pin definition
Pin Name
Pin No.
I/O
Description
Remarks
SNS_I2C_SCL
87
OD
Sensor I2C clock
-
SNS_I2C_SDA
88
OD
Sensor I2C data
-
TS_I2C_SCL
41
OD
Touch screen I2C clock
-
TS_I2C_SDA
150,158
OD
Touch screen I2C data
-
Note:
