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Table A.11: CN13: COM2
Part Number
Footprint
Description
Pin
1
2
3
4
5
6
7
8
9
UART RS485 Auto Flow Control
COM2 supports RS485 auto flow control function for all UART.
When enabling the RS485 auto control function, it will automatically drive RTS# pin
to logic high or low for flow control.
To make this RS485 auto flow control function work, please be noted that the parity
and stop-bit setting has to be one of the following three settings:
(1) 8 data bits + 1 parity bit + 1stop bit
(2) 8 data bits + 1 parity bit + 2 stop bits
(3) 8 data bits + 2 stop bits
1655000197
WF_5x2P_79_BOX_D_P1R
1655_WF_5x2P_79_BOX_D_P1R_0.Normal
Pin name
422/485 TX-
422/485 TX+
422 RX+
422 RX-
GND
DSR#
RTS#
CTS#
RI#
37
UTC-320 User Manual
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