Serial Port/Sram Select Jumpers (Jp7 To Jp11), Rcan-I/O Jumpers (Jp12, And Jp13) - Renesas M3A-HS37 User Manual

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3.2.3 Serial Port/SRAM Select Jumpers (JP7 to JP11), RCAN-I/O Jumpers (JP12, and JP13)

3.2.3 Serial Port/SRAM Select Jumpers (JP7 to JP11), RCAN-I/O Jumpers (JP12, and JP13)
Set JP7 to JP13 to change the SH7137 SCI channels connected to the serial port connector (J3).
SCI channel 0 is connected to the serial port connector (J3) as default.
Figure 3.2.4 shows the serial port select jumper assignments. Table 3.2.3 lists the serial port select jumper setting.
No. Setting
JP7
TXDSEL
JP8
RXDSEL
JP9
A4
JP10
A3
JP11
Open
S
JP12
Open
CTx0
JP13
Open
CRx0
indicates the default setting.
Note: Do not make any change with the jumper setting while the M3A-HS37 is operating. Ensure to turn the power OFF
before changing the setting. JP7 to JP10 must be set in the same way.
Rev.1.00 Oct 09, 2008
REJ11J0021-0100
Figure 3.2.4 Serial Port Select Jumper Assignments (JP7 to JP13)
Table 3.2.3 Serial Port Select Jumper Setting (JP7 to JP13)
1-2
The SH7137 PA4/TXD1 pin is connected to the serial port connector (J3)
2-3
The SH7137 PE2/TXD0 is connected to the serial port connector (J3)
1-2 The SH7137 PA3/RXD1 pin is connected to the serial port connector (J3)
2-3 The SH7137 PE1/RXD0 pin is connected to the serial port connector (J3)
1-2 GND is connected to the A4 of the SRAM (U2)
2-3 The SH7137 PA4/TXD1 pin is connected to the A4 of the SRAM (U2)
1-2 GND is connected to the A3 of the SRAM (U2)
2-3 The SH7137 PA3/RXD1 pin is connected to the A3 of the SRAM (U2)
1-2 The SH7137 CS0 pin is connected to the S pin of the SRAM (U2)
Releases S pin of the SRAM (U2)
1-2 The SH7137 CTx0 pin is connected to the TxD pin of the RCAN
Releases the CTx0 pin of the SH7137 MCU
1-2 The pin SH7137 CRx0 is connected to the RxD pin of the RCAN
Releases the CRx0 pin of the SH7137 MCU
Operational Specifications
Function
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