User’s Manual

2.4.17Serial Port 2 Connector in RS-422 Mode (CN6, Pin 11-20)

 

Signal

PIN

PIN

 

Signal

 

TxD-

11

12

 

RxD+

 

TxD+

13

14

 

RxD-

 

 

 

 

 

 

 

GND

15

16

 

NC

 

NC

17

18

 

NC

 

 

 

 

 

 

 

NC

19

20

 

NC

 

 

 

 

 

 

2.4.17.1Signal Description – Serial Port 2 Connector in RS-422 Mode (CN6, Pin 11-20)

Signal

Signal Description

 

Serial output. This differential signal pair sends serial data to the communication

TxD+/-

link. Data is transferred from Serial Port 2 Transmit Buffer Register to the

 

communication link, if the RTS register of the Serial Port 2 is set to LOW.

 

Serial input. This differential signal pair receives serial data from the

RxD+/-

communication link. Received data is available in Serial Port 2 Receiver Buffer

 

Register.

 

 

ECM-5510 User’s Manual 41