
deveopmen
Description
Rev.B2 for proof reading
Mitsubishi Microcomputers
M32C/83 group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
16
Table 1.1.11. Pin description (3/4)
Function
I/O port
Sub clock input
UART port
Description
I/O
I
O
I/O
I/O
I/O
I/O
I
I/O type
P8
0
-P8
4
, P8
6
, P8
7
X
CIN
INPC/ISRxD/BE
IN
Pin name
P8
P9
Port
I/O port
Intelligent I/O port
P9
0
to P9
7
This is a 7-bit I/O port equivalent to P0.
P8
6
and P8
7
function as I/O ports for the sub clock
generating circuit by software. Connect a crystal between
the X
CIN
and the X
COUT
pins.
When using PLL frequency synthesizer, connect P8
7
to a
low-pass filter. To stabilize PLL frequency, connect P8
6
to
Vss.
P9
0
to P9
3
are I/O ports for UART3.
P9
4
to P9
7
are I/O ports for UART4.
I
This is an 8-bit I/O port equivalent to P0.
I/O
INPC is an input port for time measurement function.
ISRxD/BE
IN
is receive data input port for intelligent I/O
communication.
Input port and input ports for NMI interrupt.
CTS/RTS/SS
CLK
RxD/SCL/STxD
TxD/SDA/SRxD
DA0, DA1
Timer A port
Three phase motor
control output port
External interrupt input
port
P8
0
to P8
1
are I/O ports for timer A4.
P8
0
and P8
1
are U phase output ports.
O
I
TA4
OUT
TA4
IN
P8
2
to P8
4
are external interrupt input ports.
I
INT
0
to INT
2
Input port
P8
5
/NMI
I
TB0
IN
to TB4
IN
Timer B port
P9
0
to P9
4
are input port for timer B4.
O
D-A output port
P9
3
and P9
4
are D-A output ports.
I
I
ANEX1, ANEX2
AD
TRG
OUTC/IE
OUT
A-D related port
P9
5
to P9
6
are expanded input port for A-D converter.
P9
7
is A-D trigger input port.
OUTC is an output port for waveform generation function.
IE
OUT
is transmit data output port for intelligent I/O
communication.
IE
IN
is receive data input port for intelligent I/O
communication.
Intelligent I/O port
IE
IN
Key input interrupt port
I
I/O
I
KI
0
to KI
3
AN
0
to AN
7
P10
I/O port
Analog input port
P10
0
to P10
7
This is an 8-bit I/O port equivalent to P0.
P10
4
to P10
7
are key input interrupt ports.
P10
0
to P10
7
are analog input ports for A-D convertor.
The protect register prevents a false write to P9 direction register and function select register A3.
U, U
I/O
I
X
COUT
O
Sub clock output
V
COUT
O
Low-pass filter connect
pin for PLL frequency
synthesizer