THW-EKGS01 - REV. 0.2
©2019 EXOR Embedded S.r.l. - Subject to change without notice
exorint.com
32
39
GND
+V_ADJ
GND
+3V3
40 +V_ADJ
GND
+3V3
GND
Table 14. FMC Connector Pinout
3.16.1
FMC JTAG
The gigaSOM carrier features a FMC JTAG on header (J26).
Pin
Signal name
Description
Pin
Signal name
Description
1
FMC_TCK
FMC JTAG Clock
2
GND
Ground
3
FMC_TDO
FMC JTAG Data Out
4
+3V3
Output voltage (3V3)
5
FMC_TMS
FMC JTAG Mode Select
6
NC
No Connect
7
NC
No Connect
8
FMC_TRSTn
FMC JTAG Reset
9
FMC_TDI
FMC JTAG Data In
10
GND
Ground
Table 15. FMC JTAG Pinout
3.17
SSW Connector
The gigaSOM carrier features a SSW Samtec connector (J27). This SSW connector suports multiple
interfaces SPI, UART, I2C, two groups of GPIO signals and power supply. On I2C is connected two
I/O Expanders, PCA6408A (IC45) and PCAL6416A (IC44). Interfaces on SSW connector are 3V3
tolerant.
Pin
Signal name
Description
Pin
Signal name
Description
1
SPI_CLK
SPI Clock
2
EXT_I2C_SCL
I2C Clock
3
SPI_CS0n
SPI Chip Select 0
4
EXT_12C_SDA
I2C Data
5
SPI_MISO
SPI Master Input Slave
Output
6
GND
Ground
7
SPI_CS1n
SPI Chip Select 1
8
EXT_GPIO7
GPIO Signal from I/O
Expander
9
SPI_MOSI
SPI Master Output Slave
Input
10
EXT_GPIO6
GPIO Signal from I/O
Expander
11
GND
Ground
12
EXT_GPIO5
GPIO Signal from I/O
Expander
13
UART3_TX
UART Data Output
14
EXT_GPIO4
GPIO Signal from I/O
Expander
15
UART3_RX
UART Data Input
16
EXT_GPIO3
GPIO Signal from I/O
Expander
17
UART3_RTS
UART Ready to Send
18
EXT_GPIO2
GPIO Signal from I/O
Expander