Datasheet

M32C/87 Group (M32C/87, M32C/87A, M32C/87B) 1. Overview
REJ03B0127-0151 Rev.1.51 Jul 31, 2008
Page 22 of 85
Table 1.18 Pin Functions (100-Pin and 144-Pin Package) (4/4)
I: Input O: Output I/O: Input and output
Table 1.19 Pin Functions (144-Pin Package Only)
I: Input O: Output I/O: Input and output
Type Symbol
I/O
Type
Supply
Voltage
Description
I/O port P0_0 to P0_7,
P1_0 to P1_7,
P2_0 to P2_7,
P3_0 to P3_7,
P4_0 to P4_7,
P5_0 to P5_7
I/O VCC2 8-bit CMOS I/O ports. The Port Pi Direction Register (i = 0 to 15)
determines if each pin is used as an input port or an output port.
The Pull-Up Control Registers determine if the input ports, divided
into groups of four, are pulled up or not.
P6_0 to P6_7,
P7_0 to P7_7,
P9_0 to P9_7,
P10_0 to
P10_7
I/O VCC1 These 8-bit I/O ports are functionally equivalent to P0.
(P7_0 and P7_1 are N-channel open drain output.)
P8_0 to P8_4
P8_6, P8_7
I/O VCC1
These I/O ports are functionally equivalent to P0.
Input port
P8_5 I VCC1
Shares the pin with NMI
. Input port to read NMI pin level.
Key input
interrupt input
KI0
to KI3
I VCC1 Key input interrupt input pins.
Type Symbol
I/O
Type
Supply
Voltage
Description
INT
Interrupt
Input
INT6 to INT8
I
VCC1 INT
interrupt input pins.
Serial
interface
CTS6
IVCC1/
VCC2
Input pin to control data transmission.
RTS6
OVCC1/
VCC2
Output pin to control data reception.
CLK6 I/O VCC1/
VCC2
Serial clock input/output pin.
RXD6 I VCC1/
VCC2
Serial data input pin.
TXD6 O VCC1/
VCC2
Serial data output pin.
Intelligent I/O OUTC2_3 to
OUTC2_7
O VCC2 Output pins for the waveform generation function.
A/D converter AN15_0 to
AN15_7
I VCC1 Analog input pins for the A/D converter.
I/O port P11_0 to
P11_4,
P12_0 to
P12_7,
P13_0 to
P13_7
I/O VCC2 These I/O ports are functionally equivalent to P0.
P14_0 to
P14_6,
P15_0 to
P15_7
I/O VCC1 These I/O ports are functionally equivalent to P0.