
Connectors
UM1509
Doc ID 022703 Rev 2
5.11 RS-232/UART2
DB9
plug connector (CN14)
Figure 17.
RS-232/UART2 DB9 plug connector (CN14) pinout
5.12 RS-232/UART1
DB9
plug connector (CN15)
Figure 18.
RS-232/UART1 DB9 plug connector (CN15) pinout
Table 21.
RS-232/UART0 DB9 plug connector (CN13) description
Pin
Description
Pin
Description
1
UART0_DCD
6
UART0_DSR
2
UART0_RX
7
UART0_RTS
3
UART0_TX
8
UART0_CTS
4
UART0_DTR
9
UART0_RI
5
GND
Table 22.
RS-232/UART2 DB9 plug connector (CN14) description
Pin
Description
Pin
Description
1
NC (R79 can interconnect this pin with
pins 4 and 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