User's Manual

Rev.1.10 Jul 01, 2005 page 313 of 318
REJ09B0124-0110
M16C/6N Group (M16C/6NK, M16C/6NM) 22. Usage Precaution
Under development
This document is under development and its contents are subject to change.
22.19 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.
22.19.1 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 22.9 shows a pin connection example for programming using serial I/O mode.
Figure 22.9 Pin Connection for Programming Using Serial I/O Mode
22.19.2 Programming Using CAN I/O Mode
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RTS1 pin : This pin automatically outputs “H” and “L” level.
Figure 22.10 shows a pin connection example for programming using CAN I/O mode.
Figure 22.10 Pin Connection for Programming Using CAN I/O Mode
CLK1(P6_5)
RXD1(P6_6)
TXD1(P6_7)
RTS1(P6_4)
EPM(P5_5)
CE(P5_0)
CNVSS
RESET
NMI(P8_5)
CRX0(P9_5)
CTX0(P9_6)
Power
supply
VCC
GND
VCC monitor input
1
3
4
10
2
6
5
9
8
7
10-pin connector
PC card-type
Flash Programmer
user reset signal
M16C/6NK, M16C/6NM
CTX0(P9_6)
CRX0(P9_5)
EPM(P5_5)
CE(P5_0)
CNVSS
RESET
NMI(P8_5)
RTS1(P6_4)
VCC
GND
1
10
4
6
5
9
8
3
7
PCA
82C250
CAN_H
CAN_L
Power
supply
VCC monitor input
10-pin connector
PC card-type
CAN Programmer
user reset signal
M16C/6NK, M16C/6NM