M16C6N4 Datasheet, PDF (389/406 Pages) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/60 SERIES

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M16C/6N Group (M16C/6N4)
23. Usage Precaution
23.15 Flash Memory Programming Using Boot Program
When programming the internal flash memory using boot program, be careful about the pins state and
connection as follows.
23.15.1 Programming Using Serial I/O Mode
CTX0 pin : This pin automatically outputs “H” level.
CRX0 pin : Connect to CAN transceiver or connect via resister to VCC (pull-up)
Figure 23.6 shows a pin connection example for programming using serial I/O mode.
PC card-type
Flash Programmer
10-pin connector
1
3
4
10
2
6
5
9
8
7
M16C/6N4
VCC monitor input
CLK1(P6_5)
RXD1(P6_6) ^NMI(P8_5)
TXD1(P6_7)
RTS1(P6_4)
EPM(P5_5) ^CRX0(P9_5)
CE(P5_0)
CNVSS
RESET
CTX0(P9_6)
user reset signal
VCC
GND
Power
supply
Figure 23.6 Pin Connection for Programming Using Serial I/O Mode
23.15.2 Programming Using CAN I/O Mode
_________
RTS1 pin : This pin automatically outputs “H” and “L” level.
Figure 23.7 shows a pin connection example for programming using CAN I/O mode.
PC card-type
CAN Programmer
10-pin connector
1
10
4
6
5
9
8
3
7
M16C/6N4
VCC monitor input
CAN_H
PCA
CAN_L _82C250
CTX0(P9_6)
CRX0(P9_5)
EPM(P5_5)
CE(P5_0)
NMI(P8_5)
CNVSS
RESET
user reset signal
RTS1(P6_4)
VCC
GND
Power
supply
Figure 23.7 Pin Connection for Programming Using CAN I/O Mode
Rev.2.30 Oct 24, 2005 page 371 of 376
REJ09B0009-0230