Technical Description
miriac MPX-LX2160A User Manual
V1.4
51/73
© MicroSys Electronics GmbH 2020
4.20.8
I2C
The MPX-LX2160A module offers a maximum of 6 independent I²C busses which
run at up to 400kHz. While I2C1 and I2C6 have dedicated pins on the module
connector, I2C2 and I2C5 share their pins with SDHC1. Whereas I2C3 and I2C4
share their pins with CAN signals.
I2C3, I2C4 and I2C5 require external pull-ups. For more information on configuration
please contact MicroSys.
SoC
Module Connector
Ball
Signal
Pin
Signal
I/O
Range
Signal
conditioning
F5
IIC1_SCL
→
ST1:H45
IIC1_SDA
3,3V
PU: 10k
G5
IIC1_SDA
↔
ST1:H46
IIC1_SCL
3,3V
PU: 10k
E4
IIC2_SDA
↔
ST1:A49
IIC2_SDA
1,8V
PU: 10k
E3
IIC2_SCL
→
ST1:D49
IIC2_SCL
1,8V
PU: 10k
J5
IIC3_SDA
↔
ST1:F1
IIC3_SDA
1,8V
H5
IIC3_SCL
→
ST1:F2
IIC3_SCL
1,8V
L5
IIC4_SDA
↔
ST1:F5
IIC4_SDA
1,8V
K5
IIC4_SCL
→
ST1:F4
IIC4_SCL
1,8V
D3
IIC5_SDA
↔
ST1:E47
SPI3_SIN
1,8V
C4
IIC5_SCL
→
ST1:F47
SPI3_SOUT
1,8V
C27
IIC6_SDA
↔
ST1:H43
IIC6_SDA
1,8V
D27
IIC6_SCL
→
ST1:H42
IIC6_SCL
1,8V
Table 4-27 I2C: pin assignments
4.20.9
CAN
CAN signals are alternate functions from IIC3 and IIC4. Depending on RCW,
signals may be used as an IICx or a CANx interface.
SoC
Module Connector
Ball
Signal
Pin
Signal
I/O
Range
Signal
conditioning
J5
IIC3_SDA
↔
ST1:F1
CAN1-RX
1,8V
H5
IIC3_SCL
→
ST1:F2
CAN1-TX
1,8V
L5
IIC4_SDA
↔
ST1:F5
CAN2-RX
1,8V
K5
IIC4_SCL
→
ST1:F4
CAN2-TX
1,8V
Table 4-28 CAN: pin assignments
