miriac SBC-S32G-R3_User Manual
V 3.2
28/65
© MicroSys Electronics GmbH 2021
5.8
IO-Expander
GPIO pins on the S32G274A are extended by a GPIO expander FXL6408:
■
I²C clock frequency up to 400 kHz
■
One interrupt out signaling pin state changes
J14 has 8 GPIOs which are used as follows:
GPIO Expander
Pin
Signal
Pin
Signal
Signal
conditioning
12
GPIO0 IN
←
J27
13
SJA1124_STAT
PU: 1K0
11
GPIO1 IN
←
J27
16
SJA1124_INT#
PU: 1K0
8
GPIO2 IN
←
J39
D5
AETH_IRQ#
PU: 1K0
7
GPIO3 OUT
←
J39
G4
AETH_RST_CORE#
PU: 1K0
6
GPIO4 IN
←
J41
12
LAN_IRQ#
PU: 1K0
5
GPIO5 IN
←
ST5
9
SD_CD#
PU: 1K0
4
GPIO6 OUT
←
J26
2,5,8,11
LIN_SLP
PU: 1K0
3
GPIO7 OUT
←
Table 5-8 GPIO Expander: Pin description
J47 has 8 GPIOs which are used as follows:
GPIO Expander
Pin
Signal
Pin
Signal
Signal
conditioning
12
GPIO0 IN
←
J45
9
SERDES_SEL
PU: 10K0
11
GPIO1 IN
←
TR22
6
KL15_IN
PU: 10K0
8
GPIO2 OUT
←
TR22
5
KL15_HOLD
PU: 10K0
7
GPIO3 OUT
←
6
GPIO4 OUT
←
TR23
1
USR_LED1
PU: 10K0
5
GPIO5 OUT
←
TR24
1
USR_LED1
PU: 10K0
4
GPIO6 OUT
←
J59
6
CANSIC_EN
PU: 10K0
3
GPIO7 OUT
←
J57
2
STBY_ON#
PD: 1K0
Table 5-9 GPIO Expander: Pin description
S32G274A
GPIO Expander
Ball
Signal
Pin
Signal
Signal conditioning
B5
PB15
←
1
PB15
Table 5-10 GPIO Expander: IRQ
