Can I/O Mode - Renesas M16C/60 Series Hardware Manual

Under development
This document is under development and its contents are subject to change.
M16C/6N5 Group

CAN I/O Mode

In CAN I/O mode, the user ROM area can be rewritten while the microcomputer is mounted on-board by
using a CAN programmer suitable for the M16C/6N5 group. For more information about CAN program-
mers, contact the manufacturer of your CAN programmer. For details on how to use, refer to the user's
manual included with your CAN programmer.
Table 1.22.8 lists pin functions for CAN I/O mode. Figures 1.22.16 shows pin connections for CAN I/O
mode.
ID code check function
This function determines whether the ID codes sent from the CAN programmer and those written in the
flash memory match. (Refer to "Functions to Prevent Flash Memory from Rewriting".)
Table 1.22.8 Pin Functions for CAN I/O Mode
Pin Name
V , V Power input
CC SS
CNV CNV
SS SS
_____________
Reset input
RESET
X Clock input
IN
X Clock output
OUT
BYTE
BYTE
AV , AV Analog power
CC SS
supply input
V Reference
REF
voltage input
P0 to P0 Input port P0
0 7
Input port P1
P1 to P1
0 7
Input port P2
P2 to P2
0 7
P3 to P3 Input port P3
0 7
Input port P4
P4 to P4
0 7
_____
P5 CE input
0
Input port P5
P5 to P5 ,
1 4
P5 , P5
6 7
________
EPM input
P5
5
Input port P6
P6 to P6 , P6
0 4 6
P6 /CLK SCLK input
5 1
TxD output
P6 /TxD
7 1
P7 to P7 Input port P7
0 7
Input port P8
P8 to P8 ,
0 4
P8 , P8
6 7
_______ ________
P8 /NMI NMI input
5
Input port P9
P9 to P9 , P9
0 4 7
P9 /CRx CRx input
5 0
CTx output
P9 /CTx
6 0
P10 to P10 Input port P10
0 7
Rev.1.00 2003.05.30 page 284
I/O
Apply the voltage guaranteed for Program and Erase to V
to V pin.
SS
I Connect to V pin.
CC
I Reset input pin. While RESET pin is "L" level, input 20 cycles or longer
clock to X pin.
IN
Connect a ceramic resonator or crystal oscillator between X
I
O pins. To input an externally generated clock, input it to X
X pin.
OUT
I Connect this pin to V
Connect AV to V
SS SS
Enter the reference voltage for A-D and D-A converters from this pin.
I
I Input "H" or "L" level signal or open.
Input "H" or "L" level signal or open.
I
I Input "H" or "L" level signal or open.
Input "H" or "L" level signal or open.
I
Input "H" or "L" level signal or open.
I
Input "H" level signal.
I
Input "H" or "L" level signal or open.
I
Input "L" level signal.
I
I Input "H" or "L" level signal or open.
Input "L" level signal.
I
Input "H" level signal.
O
I Input "H" or "L" level signal or open.
Input "H" or "L" level signal or open.
I
Connect this pin to V
I
Input "H" or "L" level signal or open.
I
Connect to a CAN transceiver.
I
Connect to a CAN transceiver.
O
I Input "H" or "L" level signal or open.
Description
____________
or V .
CC SS
and AV to V , respectively.
CC CC
.
CC
Flash Memory
pin and 0 V
CC
and X
IN OUT
pin and open
IN