R8C/3MK Group
USB-to-Serial Communication Conversion Demo Board
R0K5R8C3MDU30BR Instruction Manual
R01AN1051EJ0100 Rev.1.00
Page 14 of 38
Mar 21, 2012
Figure 7 Positioning of Signal Lines and Power Supply/GND Connected to J1/J2
Figure 8 Positioning of Signal Lines and Power Supply/GND Connected to J3
Table 4 Relation of connector pin No. and MCU functions
Terminal name
J1 pin
J2 pin
J3 pin
UART
I
2
C
SSU
GND
- 1 1 GND GND GND
RxD0 -
2
2
RxD0
-
TxD0 -
3
3
TxD0
-
SSO/SDA 1
-
4 -
SDA
SSO
SCS 5
-
5
-
-
SCS
SSI 4
-
6
-
-
SSI
SSCK/SCL 3 - 7 - SCL
SSCK
VCC
2 - 8 VCC VCC VCC
RESET -
4
- - - -
MODE
-
5
- - - -
SSO/SDA
VCC
SSCK/SCL
SSI
SCS
GND
RxD0
SSO/SDA
VCC
SSCK/SCL
SSI
SCS
TxD0
GND
RxD0
TxD0
RESET
MODE
