Serial Port Select Jumpers (Jp3,Jp4) - Renesas M3A-HS25 User Manual

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3.3.3 Serial Port Select Jumpers (JP3,JP4)

By setting the JP3 and JP4, the serial port of SH7125 connected to the serial port connector (J2) can be selected.
Figure 3.3.4 shows the Serial port select jumper assignment.
Table 3.3.3 and Table 3.3.4 list the jumper setting for selecting Serial port (JP3, JP4).
Jumper Setting
JP3
TXD1 SEL
: Initial Setting
Jumper Setting
JP4
RXD1 SEL
: Initial Setting
Note : Do not change jumper settings while the operation of M3A-HS25. Ensure to turn off the power for the
M3A-HS25 before changing jumper settings.
Rev.1.0 July 21, 2006
REJ10J0952-0100
Board
edge
Figure 3.3.4 Serial Port Select Jumper (JP3, JP4) Assignment
Table 3.3.3 Jumper Setting for Selecting Serial Port (JP3)
The PE2/TIOC0C/TXD0 pin of SH7125 is connected with serial port connector
1 - 2
(J2).
2 - 3 The PA4/TMS/TXD1 pin of SH7125 is connected with serial port connector (J2).
Table 3.3.4 Jumper Setting for Selecting Serial Port (JP4)
The PE1/TIOC0B/RXD0 pin of SH7125 is connected with serial port connector
1 - 2
(J2).
2 - 3 The PA3/TRST/RXD1 pin of SH7125 is connected with serial port connector
(J2).
Operational Specifications
3.3.3 Serial Port Select Jumpers (JP3,JP4)
Top view of the
component side
Board
edge
Function
Function
3-15