Uart Interface - Renesas M3A-HS64 User Manual

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
PJ0/CTx0/IETxD/TxD0
PJ1/CRx0/IERxD/RxD0
PJ4/IETxD/RxD3
PJ5/IERxD/TxD3
PJ6//TIOC1A/SCK3
PJ7/TIOC1B/CTS3#
PJ8/PWM2E/RTS3#
Note: Pin names in red indicate the function used.
Number
Selects the TxD0 (SCIF) pin - default
JP4
Selects the RxD0 (SCIF) pin - default
JP5
Rev. 1.00 Apr 30, 2009
REJ11J0034-0100
3.3 V
3.3 V
JP4
1
2
3
3.3 V
1
2
3
JP5
RES#
Expansion
connector
MTU2
MTU2
PWM
2
CAN interface
Figure 4.7.1 UART Interface Block Diagram
Table 4.7.1 Jumper Setting (JP4, and JP5 on the M3A-HS64)
1-2
RS-232C driver
TIN TOUT
ROUT RIN
SHDN#
UART connector (B7B-XH)
VCC
GND
Selects the CTx0 (RCAN-TL1) / IETxD (IEB) pins
Selects the CRx0 (RCAN-TL1) / IERxD (IEB) pins
M3A-HS64G02 Functions
4.7 UART Interface
D-Sub 9-pin
RS-232C connector
TXD
RXD
DTR#
DSR#
RTS#
CTS#
3.3 V
2-3
4-20