UPD784026 Renesas Electronics Corporation., UPD784026 Datasheet - Page 55
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UPD784026
Manufacturer Part Number
UPD784026
Description
16/8-bit Single-chip Microcontrollers
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD784026.pdf
(759 pages)
- Current page: 55 of 759
- Download datasheet (3Mb)
2.1 PIN FUNCTION TABLES
2.1.1 Normal Operating Mode
(1) Port pins (1/2)
P00 to P07
P10
P11
P12
P13
P14
P15 to P17
P20
P21
P22
P23
P24
P25
P26
P27
P30
P31
P32
P33
P34 to P37
Pin Name
Input/Output
Input/output
Input/output
Input/output
Input
INTP4/ASCK/SCK1
Dual-Function Pins
ASCK2/SCK2
TO0 to TO3
TxD2/SO2
RxD2/SI2
INTP2/CI
TxD/SO1
SO0/SB0
RxD/SI1
PWM0
PWM1
INTP0
INTP1
INTP3
INTP5
SCK0
CHAPTER 2 PIN FUNCTIONS
NMI
SI0
—
—
Port 0 (P0):
• 8-bit input/output port
• Can be used as real-time output ports (4 bits
• Input/output specifiable bit-wise
• For input mode pins, internal pull-up resistor connection can be
• Transistor drive capability
Port 1 (P1):
• 8-bit input/output port
• Input/output specifiable bit-wise.
• For input mode pins, internal pull-up resistor connection can be
• LED drive capability
Port 2 (P2):
• 8-bit input/output port
• P20 cannot be used as a general-purpose port (non-maskable
• For P22 to P27, internal pull-up resistor connection can be specified
• The P25/INTP4/ASCK/SCK1 pin operates as the SCK1 output pin
Port 3 (P3):
• 8-bit input/output port
• Input/output specifiable bit-wise
• For input mode pins, internal pull-up resistor connection can be
specified at once in software
specified at once in software
interrupt) Input level can be confirmed in the interrupt routine.
in software in 6-bit units
in accordance with the CSIM1 register specification
specified at once in software
Functions
2)
15
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