Datasheet

M32C/8B Group 1. Overview
REJ03B0242-0100 Rev.1.00 Nov 01, 2009
Page 17 of 67
Table 1.13 Pin Functions (100-Pin and 144-Pin Packages) (3/3)
Table 1.14 Pin Functions (144-Pin Package Only)
Item Pin Name
I/O
Type
Supply
Voltage
Description
Reference
voltage input
VREF I − The VREF pin supplies the reference voltage to the A/D converter
and D/A converter.
A/D converter AN_0 to AN_7 I VCC1 Analog input pins for the A/D converter.
AN0_0 to
AN0_7,
AN2_0 to
AN2_7
I VCC2 Analog input pins for the A/D converter.
ADTRG
I VCC1 External trigger input pin for the A/D converter.
ANEX0 I/O VCC1 Extended analog input pin for the A/D converter or 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 pins for the D/A converter.
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
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
Item Pin Name
I/O
Type
Supply
Voltage
Description
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