Cavli Wireless C100QM - 3.12 I2 C Bus

Cavli Wireless C100QM/C10QM Hardware Manual
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3.12 I2C bus
The C100QM/C10QM module provides a set of hardware bidirectional serial buses with
an I2C interface of 1.8V level, a 5.0 protocol interface, and a clock rate of 400KHz.
Table 3-18 I2C pin definition
NO.
Signal
name
I/O
description
paramete
r
Level value (V)
remarks
min
Typical
ma
x
41
I2C_SCL
DO
I2C bus
clock output
VOH
1.3
5
1.8
2
VOL
0
0.4
5
42
I2C_SDA
IO
I2C bus data
input and
output
VOH
1.3
5
1.8
2
VOL
0
0.4
5
VIH
1.2
1.8
2
VIL
-0.3
0.6
The I2C reference circuit is connected as follows: