CSE-M53G User Manual Ver. 1.0
Sollae Systems Co., Ltd.
- 12 -
1.4.5
Serial Port Parameters
Parameter
Value
Number
1
Type
3.3V level with 5V tolerant input
Baud rate
RS232 without Xon/Xoff : 300 ~ 921,600 bps
RS232 with Xon/Xoff : 300 ~ 230,400 bps
RS422 / RS485 : 300 ~ 230,400 bps
using SSL : 300 ~ 115,200 bps
Parity
NONE / EVEN / ODD / MARK / SPACE
Data bit
8 / 7
Stop bit
1 / 2
Flow control
NONE, RTS/CTS, Xon/Xoff
Table 1-6 serial port parameters
7 data bits with NONE parity is not supported.
A single idle bit is automatically added after every stop bit by the MCU
function.
1.4.6
Electrical characteristics
Symbol
Description
Condition
Min
Max
Unit
V
IH
High-level input voltage
V
DD
=2.6V,
at 25
℃
1.5
5.5
V
V
IL
Low-level input voltage
-0.3
0.9
V
V
OH
High-level output voltage
2.3
-
V
V
OL
Low-level output voltage
-
0.2
V
Table 1-7 I/O ports static characteristics
