CHAPTER 2 PIN FUNCTIONS
35
User’s Manual U11302EJ4V0UM
(1) Port pins (2/2)
Pin Name
I/O
Function
After
Alternate
Reset
Function
P70 to P74
I/O
Port 7.
Input
—
N-ch open-drain 5-bit I/O port.
LEDs can be driven directly.
Input/output can be specified in 1-bit units.
In mask ROM versions, use of an on-chip pull-up resistor can be
specified in 1-bit units with the mask option.
P80 to P87
Output
Port 8.
Output
FIP13 to FIP20
P-ch open-drain 8-bit high-withstanding-voltage output port.
LEDs can be driven directly.
In mask ROM versions, use of an on-chip pull-down resistor can be
specified in 1-bit units with the mask option (connection to V
LOAD
or
V
SS
is specifiable in 4-bit units).
P90 to P97
Output
Port 9.
Output
FIP21 to FIP28
P-ch open-drain 8-bit high-withstanding-voltage output port.
LEDs can be driven directly.
In mask ROM versions, use of an on-chip pull-down resistor can be
specified in 1-bit units with the mask option (connection to V
LOAD
or
V
SS
is specifiable in 4-bit units).
P100 to P107
I/O
Port 10.
Input
FIP29 to FIP36
P-ch open-drain 8-bit high-withstanding-voltage I/O port.
Input/output can be specified in 1-bit units.
LEDs can be driven directly.
In mask ROM versions, use of an on-chip pull-down resistor can be
specified in 1-bit units with the mask option (connection to V
LOAD
or
V
SS
is specifiable in 4-bit units).
P110 to P117
I/O
Port 11.
Input
FIP37 to FIP44
P-ch open-drain 8-bit high-withstanding-voltage I/O port.
Input/output can be specified in 1-bit units.
LEDs can be driven directly.
In mask ROM versions, use of an on-chip pull-down resistor can be
specified in 1-bit units with the mask option (connection to V
LOAD
or
V
SS
is specifiable in 4-bit units).
P120 to P127
I/O
Port 12.
Input
FIP45 to FIP52
P-ch open-drain 8-bit high-withstanding-voltage I/O port.
Input/output can be specified in 1-bit units.
LEDs can be driven directly.
In mask ROM versions, use of an on-chip pull-down resistor can be
specified in 1-bit units with the mask option (connection to V
LOAD
or
V
SS
is specifiable in 4-bit units).
Содержание mPD780208 Subseries
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