SENA HD132x Series - Manual (Page 11)

HD132x Series User Manual
11
3.2.1 Power Supply
l Voltage Supply = 5V DC
±
10%
l Current Supply = 150mA min.
3.2.2 External Interface
There is a total of 20 pins in the connector JP1 and JP2 in HD1321 to interface microprocessor,
Ethernet controller and UART with the user device. (See Table 3.1 and Figure 3.7)
Connector Pin # Symbols Descriptions Remarks
1 GND Power Supply Grounding
2 Reset System Reset Low Active
3 ~ 5 LED2 ~ LED0
Ethernet Communication Status LED
LED0: Tx, LED1: Rx, LED2: Collision
6 TPOut- Ethernet Signal TPOut-
7 TPOut+ Ethernet Signal TPOut+
8 TPIn+ Ethernet Signal TPIn+
9 TPIn- Ethernet Signal TPIn-
JP1
10 Vcc 5V Power Supply
1 Vcc 5V Power Supply
2 NC
3 DSR RS232 Data Set Ready
4 CTS RS232 Clear To Send
5 DTR RS232 Data Terminal Ready
6 RTS RS232 Ready To Send
7 RxD RS232 Data Input
8 TxD RS232 Data Output
9 NC
TTL Level
JP2
10 GND Grounding
Table 3.1 HD1321 Pin Assignment