M32C80 Datasheet, PDF (30/352 Pages) Renesas Technology Corp – 16/32-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M32C/80 SERIES

M32C/80 Group
1. Overview
Table 1.5 Pin Description (Continued)
Signal name Pin name I/O type ^Supply
voltage
Description
Reference
VREF
I
-
Applies reference voltage for the A/D converter and D/A converter
voltage input
A/D converter AN0 to AN7 I
___________
ADTRG
I
VCC1
VCC1
Analog input pins for the A/D converter
Input pin for an external A/D trigger
ANEX0
I/O VCC1 Extended analog input pin for the A/D converter and output pin in
external op-amp connection mode
ANEX1
I
VCC1
Extended analog input pin for the A/D converter
D/A converter DA0, DA1
O VCC1 Output pin for the D/A converter
Intelligent I/O ISCLK0
I/O VCC1 Inputs and outputs clock for the intelligent I/O communication
communication ISCLK1
fucntion
function
ISTxD0
O VCC1 Outputs data for the intelligent I/O communication fucntion
ISTxD1
ISRxD0
I VCC1 Inputs data for the intelligent I/O communication fucntion
ISRxD1
I/O port
P00 to P07(1) I/O VCC2
P10 to P17(2)
P20 to P27(1)
P30 to P37(1)
P40 to P47(1)
P50 to P57(1)
I/O ports fro CMOS. Each port can be programmed for nput or
output under the control of the direction register. An input port
can be set, by program, for a pull-up resistor available or for no
pull-up resistor available in 4-bit units
P60 to P67 I/O VCC1 I/O ports having equivalent functions to P0
P70 to P77
(P70 and P71 are ports for the N-channel open drain output.)
P90 to P97
P100 to P107
P80 to P84, I/O VCC1 I/O ports having equivalent functions to P0
P86, P87
P85
_______ _______
I VCC1 Shares a pin with NMI. NMI input state can be got by reading P85
I: Input O: Output I/O: Input and output
NOTES:
1. Ports P0 to P5 function as bus control pins when using memory expansion mode or microprocessor mode. They
cannot be used as I/O ports.
2. Port P1 functions as I/O port when the microcomputer is placed in memory expansion mode or microprocessor
mode and all external data buses are selected as 8-bit buses.
Rev. 1.00 Nov. 01, 2005 ^{page 11} of 330
REJ09B0271-0100