13
3886 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
Notes1: For details of the functions of ports P0 to P3 in modes other than single-chip mode, and how to use double-function ports as function I/O ports, refer
to the applicable sections.
2: Make sure that the input level at each pin is either 0 V or V
CC during execution of the STP instruction.
When an input level is at an intermediate potential, a current will flow from V
CC to VSS through the input-stage gate.
Pin
Name
Input/Output I/O Format
Non-Port Function
Ref.No.
Table 5 I/O port function (2)
Related SFRs
P50/A0
P51/INT20
/S0
P52/INT30
/R
P53/INT40
/W
P54/CNTR0
P55/CNTR1
P56/DA1/
PWM01
P57/DA2/
PWM11
P60/AN0–
P67/AN7
P70/SIN2
P71/SOUT2
P72/SCLK2
P73/SRDY2/
INT21
P74/INT31
P75/INT41
P76/SDA
P77/SCL
P80/DQ0–
P87/DQ7
Port P5
Port P6
Port P7
Port P8
Input/output,
individual bits
CMOS compatible
input level
CMOS 3-state output
(when selecting bus
interface function)
CMOS compatible
input level or TTL
input level
CMOS compatible
input level
CMOS 3-state output
CMOS compatible
input level or TTL
input level
N-channel open-drain
output
CMOS compatible
input level
N-channel open-drain
output
(when selecting I
2
C-
BUS interface
function)
CMOS compatible
input level or SMBUS
input level
CMOS compatible
input level
CMOS 3-state output
(when selecting bus
interface function)
CMOS compatible
input level or TTL
input level
Bus interface function
input
External interrupt input
Bus interface function
input
Timer X, timer Y func-
tion I/O
D-A converter output
PWM output
A-D converter input
Serial I/O2 function I/O
Serial I/O2 function out-
put
Bus interface function
input
External interrupt input
I
2
C-BUS interface func-
tion I/O
Bus interface function
I/O
Data bus buffer control
register
Interrupt edge selection
register
Data bus buffer control
register
Timer XY mode register
AD/DA control register
UART control register
AD/DA control register
Serial I/O2 control
register
Port control register 2
Serial I/O2 control
register
Port control register 2
Interrupt edge selection
register
Port control register 2
I
2
C control register
Data bus buffer control
register
(15)
(16)
(17)
(18)
(19)
(20)
(21)
(22)
(23)
(24)
(25)
(26)
(27)
(28)
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