Cavli Wireless C100QM - Page 40

Cavli Wireless C100QM/C10QM Hardware Manual
40
The UART interface is defined as follows:
Table 3-10 UART serial port signal definition
NO.
NAME
I/O
description
paramet
er
Level value (V)
remark
s
min
typica
l
max
62
UART_
RI
DO
UART ringing output
VOH
1.3
5
1.8
2
VOL
0
0.45
63
UART_
DCD
DO
UART data carrier
detection
VOH
1.3
5
1.8
2
VOL
0
0.45
64
UART_
CTS
DO
UART clear send
VOH
1.3
5
1.8
2
VOL
0
0.45
65
UART_
RTS
DI
Send UART request
VIH
1.2
1.8
2
VIL
-0.3
0.6
66
UART_
DTR
DI
UART data is ready
VIH
1.2
1.8
2
VIL
-0.3
0.6
67
UART_
TXD
DO
UART send data
VOH
1.3
5
1.8
2
VOL
0
0.45
68
UART_
RXD
DI
UART receive data
VIH
1.2
1.8
2
VIL
-0.3
0.6
When users want to use the full-featured serial port, you can refer to the following
connection methods.