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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
JP4 RXD1 SEL
3
1
JP3 TXD1 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