27
3-8 COM Port Connector (OEM)
Note : All signal are TTL level .
.
CC21: COM2 port (5pin 1.25mm Wafer)
PIN NO.
Description
1
2
3
4
5
+5V
GND
RTS
TX RX
pin1
CC21
PIN NO. Description PIN NO. Description
1 DCD 6 DSR
2 RXD 7 RTS
3 TXD 8 CTS
4 DTR 9 RI
5 GND
.
CC1: RS232 Mode COM1 conector ( D-SUB 9pin)
Note : All signal are RS-232 level.
CC1: COM1
3-9 For F75111N I2C watch dog timer device:
DIO function:
Logic 0 Level :+0.5V Max , Logic 1 Level : +4V Min
Watch Dog Time value 0~255 sec
The system will be issued reset. When WDT is enable the hardware start down
counter to zero. The reset timer have 10~20% tolerance upon the Temperature.
Note: Please refer to page 28 for DIO/WDT sample code .
------------------------------------------------------------------
Sample W75IO Demo Program
------------------------------------------------------------------
1. DI
2. DO
3. WatchDog
4. Exit
------------------------------------------------------------------
Please select demo function<1-4>?
1.
DI: Input DI value (0~FF, DI bit 0~7 HI level)
2.
DO: Input DO value (0~FF, DO bit 0~7 HI level)
3.
WatchDog: Input WatchDog Value (0~256 sec)
4.
Exit: Exit program
