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Connector pinouts
EVALSPEAr320HMI
Doc ID 18410 Rev 3
5.3
RS232/UART0 DB9 plug connector (CN500)
5.4
RS232/UART2 DB9 plug connector (CN501)
5.5
RS232/UART1 DB9 plug connector (CN502)
Table 13.
RS232/UART0 DB9 plug connector pinout (CN500)
Pin
Description
Pin
Description
1
NC (R500 R79 can interconnect this pin with pins 4, 6)
6
Connected to pin 4
2
UART0_RX 7
UART0_RTS
3
UART0_TX 8
UART0_CTS
4
Connected to pin 6
9
NC
5
GND
1
2
3
4
5
6
7
8
9
Table 14.
RS232/UART2 DB9 plug connector pinout (CN501)
Pin
Description
Pin
Description
1
NC (R502 can interconnect this pin with pins 4, 6)
6
Connected to pin 4
2
UART2_RX
7
Connected to pin 8
3
UART2_TX
8
Connected to pin 7
4
Connected to pin 6
9
NC
5
GND
1
2
3
4
5
6
7
8
9
Table 15.
RS232/UART1 DB9 plug connector pinout (CN502)
Pin
Description
Pin
Description
1
NC (R503 can interconnect this pin with pins 4, 6)
6
Connected to pin 4
2
UART1_RX
7
Connected to pin 8
3
UART1_TX
8
Connected to pin 7
4
Connected to pin 6
9
NC
5
GND
1
2
3
4
5
6
7
8
9
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