Renesas SH7149 Manual Do Utilizador

Operational Specifications 

3.2.3 Serial Port Select Jumpers (JP3,JP4) 

3 

3.2.3 Serial Port Select Jumpers (JP3,JP4) 

 

The JP3 and JP4 allow the connection for the Serial port (TXD1 and RXD1) in the SH7149 to be selected. 

Figure 3.2.4 shows the Serial port select jumper (JP3, JP4) assignment. 

Table 3.2.3 and Table 3.2.4 list the jumper setting for selecting Serial port (JP3, JP4). 

 

Top view of the

Component side

Board

edge

Board

edge

1

3

JP

4 R

X

D1

 SEL

3

1

JP

3 TXD

1 

SEL

 

 

Figure 3.2.4 Serial Port Select Jumper (JP3, JP4) Assignment 

 

Table 3.2.3 Jumper Setting for Selecting Serial Port (JP3) 

Jumper Setting 

Function 

1 - 2 

The TXD1 pin of SH7149 is connected with Serial port connector (J3). 

JP3 

 TXD1 SEL 

2 - 3 

The TXD1 pin of SH7149 is connected with extension connector (J14). 

   : Initial Setting 

 

Table 3.2.4 Jumper Setting for Selecting Serial Port (JP4) 

Jumper Setting 

Function 

1 - 2 

The RXD1 pin of SH7149 is connected with Serial port connector (J3). 

JP4 

 RXD1 SEL 

2 - 3 

The RXD1 pin of SH7149 is connected with extension connector (J14). 

   : Initial Setting 

Note : Do not change jumper settings while the operation of M3A-HS49. Ensure to turn off the power for the 

M3A-HS49 before changing jumper settings. 

 
 

Rev.1.0  Dec 15, 2006 

3-18

REJ10J0917-0100