miriac MPX-S32G274A User Manual
V2.1
35/76
© MicroSys Electronics GmbH 2020
4.12.7
ULPI (USB)
The MPX-S32G274A does not have a USB PHY but a ULPI interf ace. The ULPI
signals are not available as primary interf ace on the module connector but they are
shared with RGMII signals. For more details please see chapter 4.12.6.
The ULPI interf ace can also be conf igured as GPIO.
The pins are listed in the Appendix in chapter 10.4 and 10.5.
4.12.8
I2C
The MPX-S32G274A module of f ers f ive I²C busses which run at up to 400kHz.
I2C3 is not available as primary interf ace.
I2C4 is explicitly used f or the power management chip on the module.
The pins are listed in the Appendix in chapter 10.4 and 10.5.
I2C0 map:
Device
A6
A5
A4
A3
A2
A1
A0
R/W
Addr
GPIO
Expander
FXL6408
1
0
0
0
0
1
1
1/0
0x43
Temperature
Sensor
TMP451AIDQF
(slave address)
1
0
0
1
1
0
0
1/0
0x4C
TMP451
(General Call reset
address)
0
0
0
0
0
0
0
-/0
0x00
DIP Switch
PCA9561PW
1
0
0
1
1
0
1
1/0
0x4D
EEPROM
AT24C01C-SSHM
1
0
1
0
0
0
0
1/0
0x50
RTC
PCF85263ATL
1
0
1
0
0
0
1
1/0
0x51
EEPROM
BR24G128NUX-3
1
0
1
0
1
0
0
1/0
0x54
EEPROM
AT24C01C-SSHM
1
0
1
0
1
1
0
1/0
0x56
Table 28 I2C0: bus map
