UPD784026 Renesas Electronics Corporation., UPD784026 Datasheet - Page 57

• Manufacturer Part Number: UPD784026
• Description: 16/8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

(2) Pins other than port pins (1/2)
TO0/TO3
CI
RxD
RxD2
TxD
TxD2
ASCK
ASCK2
SB0
SI0
SI1
SI2
SO0
SO1
SO2
SCK0
SCK1
SCK2
NMI
INTP0
INTP1
INTP2
INTP3
INTP4
INTP5
AD0 to AD7
A8 to A15
A16 to A19
RD
WR
WAIT
REFRQ
HLDRQ
HLDAK
Pin Name
Input/Output
Input/output
Input/output
Input/output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Input
Input
Input
Input
Input
Input
Input
Dual-Function Pins
P34 to P37
P23/INTP2
P30/SI1
P13/SI2
P31/SO1
P14/SO2
P25/INTP4/SCK1
P12/SCK2
P33/SO0
P27
P30/RxD
P13/RxD2
P33/SB0
P31/TxD
P14/TxD2
P32
P25/INTP4/ASCK
P12/ASCK2
P20
P21
P22
P23/CI
P24
P25/ASCK/SCK1
P26
P40 to P47
P50 to P57
P60 to P63
P64
P65
P66/HLDRQ
P67/HLDAK
P66/WAIT
P67/REFRQ
CHAPTER 2 PIN FUNCTIONS
Timer output
Count clock input to timer/counter 2
Serial data input (UART0)
Serial data input (UART2)
Serial data output (UART0)
Serial data output (UART2)
Baud rate clock input (UART0)
Baud rate clock input (UART2)
Serial data input/output (SBI)
Serial data input (3-wire serial I/O0)
Serial data input (3-wire serial I/O1)
Serial data input (3-wire serial I/O2)
Serial data output (3-wire serial I/O0)
Serial data output (3-wire serial I/O1)
Serial data output (3-wire serial I/O2)
Serial clock input/output (SBI, 3-wire serial I/O0)
Serial clock input/output (3-wire serial I/O1)
Serial clock input/output (3-wire serial I/O2)
External interrupt requests
Time division address/data bus (external memory connection)
Upper address bus (external memory connection)
Upper address with address extension (external memory connection)
External memory read strobe
External memory write strobe
Wait insertion
External pseudo-static memory refresh pulse output
Bus hold request input
Bus hold response output
• Count clock input to timer/counter 1
• CR11 or CR12 capture trigger signal
• Count clock input to timer/counter 2
• CR22 capture trigger signal
• Count clock input to timer/counter 2
• CR21 capture trigger signal
• Count clock input to timer/counter 0
• CR02 capture trigger signal
A/D converter conversion start trigger input
Functions
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