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96
CHAPTER 6 PORT FUNCTIONS
User
’
s Manual U14260EJ3V1UD
Table 6-2. Port Functions (
μ
PD780078Y Subseries)
Alternate
Function
INTP0
INTP1
INTP2
INTP3/ADTRG
ANI0 to ANI7
SI1
SO1
SCK1
RxD0
TxD0
ASCK0
—
SDA0
SCL0
SI3/T
X
D2
SO3/R
X
D2
SCK3/ASCK2
AD0 to AD7
A8 to A15
RD
WR
WAIT
ASTB
TI000/TO00
TI010
TI50/TO50
TI51/TO51
TI011/PCL
TI001/TO01/BUZ
SS1
Pin Name
P00
P01
P02
P03
P10 to P17
P20
P21
P22
P23
P24
P25
P30
P31
P32
P33
P34
P35
P36
P40 to P47
P50 to P57
P64
P65
P66
P67
P70
P71
P72
P73
P74
P75
P80
Function
Port 0
4-bit I/O port.
Input/output mode can be specified in 1-bit units.
An on-chip pull-up resistor can be used by setting software.
Port 1
8-bit input-only port.
Port 2
6-bit I/O port
Input/output mode can be specified in 1-bit units.
An on-chip pull-up resistor can be used by setting software.
Port 3
7-bit I/O port.
Input/output mode can be specified
N-ch open-drain I/O port.
An on-chip pull-up resistor can be specified by a
mask option (P30 and P31 are mask ROM version
only). LEDs can be driven directly.
in 1-bit units.
An on-chip pull-up resistor can be used by setting
software.
Port 4
8-bit I/O port.
Input/output mode can be specified in 1-bit units.
An on-chip pull-up resistor can be used by setting software.
Interrupt request flag (KRIF) is set to 1 by falling edge detection.
Port 5
8-bit I/O port.
LEDs can be driven directly.
Input/output mode can be specified in 1-bit units.
An on-chip pull-up resistor can be used by setting software.
Port 6
4-bit I/O port.
Input/output mode can be specified in 1-bit units.
An on-chip pull-up resistor can be used by setting software.
Port 7
6-bit I/O port.
Input/output mode can be specified in 1-bit units.
An on-chip pull-up resistor can be used by setting software.
Port 8
1-bit I/O port.
Input/output mode can be specified in 1-bit units.
An on-chip pull-up resistor can be used by setting software.