Renesas M3A-HS64, User Manual

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M3A-HS64G02 Functions
4.7 UART Interface
Rev. 1.00 Apr 30, 2009 4-20
REJ11J0034-0100
4
4.7 UART Interface
The SH7264 includes a Serial Communication Interface with FIFO (SCIF). SCIF channel 3 is connected to the UART connector
(7-pin, 2.5 mm pitch) on the M3A-HS64G02, at TTL level.
The SH7264 SCIF channel 3 pin is also used as the Multi Function Timer Pulse Unit 2 (MTU2) pin and the Motor Control PWM
Timer pin.
The figure below shows the UART interface block diagram. The table below lists the jumpers setting (JP4, and JP5).
SH7264 RS-232C driver
SHDN#
PJ1/CRx0/IERxD/ RxD0
TIN
ROUT
PJ0/CTx0/IETxD/ TxD0
3.3 V
3.3 V
RES#
3.3 V
RIN
TOUT
RXD
TXD
DTR#
DSR#
RTS#
CTS#
D-Sub 9-pin
RS-232C connector
CAN interface
PJ5/IERxD/ TxD3
PJ4/IETxD/ RxD3
PJ6// TIOC1A /SCK3
PJ7/ TIOC1B /CTS3#
PJ8/ PWM2E /RTS3#
UART connector (B7B-XH)
GND
2
Expansion
connector
JP5
JP4
PWM
MTU2
MTU2
3.3 V
VCC
2
3
1
2
3
1
Note: Pin names in red indicate the function used.
Figure 4.7.1 UART Interface Block Diagram
Table 4.7.1 Jumper Setting (JP4, and JP5 on the M3A-HS64)
Number
1-2 2-3
JP4
Selects the TxD0 (SCIF) pin - default Selects the CTx0 (RCAN-TL1) / IETxD (IEB) pins
JP5
Selects the RxD0 (SCIF) pin - default Selects the CRx0 (RCAN-TL1) / IERxD (IEB) pins