CSE-M53N User Manual Ver. 2.5
Sollae Systems Co., Ltd.
- 12 -
http://www.ezTCP.com
1.5.5 Serial Port Parameters
Parameter
Value
Number
1
Type
CMOS and TTL compliant (3.3V)
Baud rate
RS232 : 300 ~ 921,600 bps
RS422 / RS485 : 300 ~ 230,400 bps
Parity
NONE / EVEN / ODD / MARK / SPACE
Data bit
8 / 7
Stop bit
1 / 1.5 / 2
Flow control
NONE, RTS/CTS, Xon/Xoff
Table 1-6 serial port parameters
7 data bits with NONE parity is not supported.
1.5.6 Electrical characteristics
Symbol
Description
Condition
Min
Max
Unit
V
DD
Standard operating voltage
-
2.0
3.6
V
V
IH
High-level input voltage
V
DD
=3.3V
1.833
3.6
V
V
IL
Low-level input voltage
-0.3 1.164
V
V
OH
High-level output voltage
CMOS port
I
IO
= +8mA
2.7V < V
DD
< 3.6V
2.4
-
V
V
OL
Low-level output voltage
-
0.4
V
Table 1-7 I/O ports static characteristics
