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M
1
6
C
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A
G
o r
u
p
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M
1
6
1.6 Pin Description
Table 1.13 Pin Description (48-Pin and 42-Pin Packages)
Classification
Pin Name
Power Supply
V
CC,
Analog Power
AV
CC
Supply
AV
SS
____________
Reset Input
RESET
CNVSS
CNV
SS
Main Clock
X
IN
Input
Main Clock
X
OUT
Output
Sub Clock Input
X
CIN
Sub Clock Output
X
COUT
Clock Output
CLK
OUT
______
________
INT Interrupt
INT0 to INT5
Input
_______
_______
NMI Interrupt
NMI
Input
_____
Key Input Interrupt
KI
to KI
0
Timer A
TA0
OUT
TA4
OUT
TA0
IN
TA4
IN
ZP
Timer B
TB0
IN
TB1
IN
___
Three-Phase
U, U, V, V,
___
Motor Control
W, W
Timer Output
IDU, IDW,
IDV, SD
_________
Serial I/O
CTS1 to CTS2
_________
RTS1 to RTS2
CLK1 to CLK2
RxD1 to RxD2
TxD1 to TxD2
CLKS1
Reference
V
REF
Voltage Input
A/D Converter
AN
0
AN3
0
___________
AD
TRG
I/O Ports
P1
to P1
5
P6
to P6
4
P7
to P7
0
P8
to P8
0
P10
0
P9
to P9
0
I : Input
O : Output
R
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. v
2
0 .
0
F
e
b
1 .
, 5
2
0
0
7
R
E
J
0
9
B
0
2
0
2
0 -
2
0
0
C
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6
, A
M
1
6
C
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6
, B
M
1
I/O Type
I
Apply 0V to the Vss pin. Apply following voltage to the Vcc pin.
V
SS
2.7 to 5.5 V (M16C/26A, M16C/26B), 3.0 to 5.5 V (M16C/26T T-ver.), 4.2
to 5.5 V (M16C/26T V-ver.)
I
Supplies power to the A/D converter. Connect the AV
the AV
I
The MCU is in a reset state when "L" is applied to the
I
Connect the CNV
I
I/O pins for the main clock oscillation circuit. Connect a ceramic resonator
or crystal oscillator between X
it to X
O
external clock), connect X
I/O pins for the sub clock oscillation circuit. Connect a crystal oscillator
I
between X
O
Outputs the clock having the same frequency as f1, f
O
________
Input pins for the
I
function
_______
interrupt input pin.
I
NMI
motor control is enabled. Apply a stable "H" to NMI after setting it's direction
register to "0" when the three-phase motor control is enabled
_____
I
Input pins for the key input interrupt
3
I/O
I/O pins for the timer A0 to A4
to
I
Input pins for the timer A0 to A4
to
I
Input pin for Z-phase
I
Timer B0 to B1 input pins
to
___
Output pins for the three-phase motor control timer
O
I/O pins for the three-phase motor control timer
I/O
_____
_________
Input pins to control data transmission
I
_________
O
Output pins to control data reception
I/O
Inputs and outputs the transfer clock
I
Inputs serial data
O
Outputs serial data
O
Output pin for transfer clock
I
Applies reference voltage to the A/D converter
I
Analog input pins for the A/D converter
to AN
7
to AN3
1
Input pin for an external A/D trigger
I
I/O ports for CMOS. Each port can be programmed for input or output
I/O
7
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 resister available
in 3-bit units
CMOS I/O ports which have a direction register determines an individual
I/O
7
pin used as an input port or an output port. A pull-up resistor is selectable
7
for every 4 input ports
7
to P10
7
1
I/O : Input and output
page 15
f o
3
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9
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) T
Description
pin to V
SS
SS
pin to V
SS
SS
IN
and leave X
open. If X
IN
OUT
pin to V
IN
and X
CIN
COUT
______
interrupt.
INT
_______
cannot be used as I/O port while the three-phase
NMI
CC
___________
RESET
and X
. To apply external clock, apply
OUT
is not used (for external oscillator or
IN
and leave X
open
CC
OUT
, f
8
32
________
can be used for Timer A Z-phase
INT2
_______
1. Overview
pin to V
and
CC
pin
, or f
C
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