upd78f0124hgba1-8et-a Renesas Electronics Corporation., upd78f0124hgba1-8et-a Datasheet - Page 33

• Manufacturer Part Number: upd78f0124hgba1-8et-a
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

2.2.3 P20 to P27 (port 2)
(1) Port mode
(2) Control mode
2.2.4 P30 to P33 (port 3)
timer I/O.
(1) Port mode
(2) Control mode
P20 to P27 function as an 8-bit input-only port. These pins also function as pins for A/D converter analog input.
The following operation modes can be specified in 1-bit units.
P30 to P33 function as a 4-bit I/O port. These pins also function as pins for external interrupt request input and
The following operation modes can be specified in 1-bit units.
(f) TI50
(g) TO50, TOH0, and TOH1
(h) INTP5
(i)
P20 to P27 function as an 8-bit input-only port.
P20 to P27 function as A/D converter analog input pins (ANI0 to ANI7). When using these pins as analog input
pins, refer to (5) ANI0/P20 to ANI7/P27 in 12.6 Cautions for A/D Converter.
P30 to P33 function as a 4-bit I/O port. P30 to P33 can be set to input or output in 1-bit units using port mode
register 3 (PM3). Use of an on-chip pull-up resistor can be specified by pull-up resistor option register 3 (PU3).
P30 to P33 function as external interrupt request input pins and timer I/O pins.
(a) INTP1 to INTP4
(b) TI51
(c) TO51
Caution In the
Remark P31/INTP2 and P32/INTP3 of the
This is a pin for inputting an external count clock to 8-bit timer/event counter 50.
These are timer output pins.
This is an external interrupt request input pin for which the valid edge (rising edge, falling edge, or both rising
and falling edges) can be specified.
FLMD1
This is the pin for setting the flash memory programming mode.
These are the external interrupt request input pins for which the valid edge (rising edge, falling edge, or both
rising and falling edges) can be specified.
This is an external count clock input pin to 8-bit timer/event counter 51.
This is a timer output pin.
when the on-chip debug function is used. For details, refer to CHAPTER 25 ON-CHIP DEBUG
FUNCTION (
µ
PD78F0124HD, be sure to pull the P31 pin down after reset to prevent malfunction.
µ
PD78F0124HD ONLY).
CHAPTER 2 PIN FUNCTIONS
User’s Manual U16962EJ3V0UD
µ
PD78F0124HD can be used as on-chip debug mode setting pins
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