UPD784224 Datasheet, PDF (14/92 Pages) NEC – 16/8-BIT SINGLE-CHIP MICROCONTROLLERS

µPD784224, 784225, 784224Y, 784225Y
5.2 Pins Other Than Port Pins (1/2)
Pin Name
TI00
TI01
TI1
TI2
TO0
TO1
TO2
RxD1
RxD2
TxD1
TxD2
ASCK1
ASCK2
SI0
SI1
SI2
SO0
SO1
SO2
SDA0^Note
SCK0
SCK1
SCK2
SCL0^Note
NMI
INTP0
INTP1
INTP2
INTP3
INTP4
INTP5
PCL
BUZ
RTP0 to RTP7
I/O
Input
Output
Input
Output
Intput
Input
Output
I/O
I/O
Input
Output
Output
Output
Alternate Function
P35
P36
P33
P34
P30
P31
P32
P20/SI1
P70/SI2
P21/SO1
P71/SO2
P22/SCK1
P72/SCK2
P25/SDA0^Note
P20/RxD1
P70/RxD2
P26
P21/TxD1
P71/TxD2
P25/SI0
P27/SCL0^Note
P22/ASCK1
P72/ASCK2
P27/SCK0
P02/INTP2
P00
P01
P02/NMI
P03
P04
P05
P23
P24
P120 to P127
AD0 to AD7
A8 to A15
A16 to A19
I/O
Output
P40 to P47
P50 to P57
P60 to P63
Function
External count clock input to 16-bit timer register
Capture trigger signal input to capture/compare register 00
External count clock input to 8-bit timer register 1
External count clock input to 8-bit timer register 2
16-bit timer output (shared by 14-bit PWM output)
8-bit timer output (shared by 8-bit PWM output)
Serial data input (UART1)
Serial data input (UART2)
Serial data output (UART1)
Serial data output (UART2)
Baud rate clock input (UART1)
Baud rate clock input (UART2)
Serial data input (3-wire serial clock I/O0)
Serial data input (3-wire serial clock I/O1)
Serial data input (3-wire serial clock 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 data input/output (I²C bus)
Serial clock input/output (3-wire serial I/O0)
Serial clock input/output (3-wire serial I/O1)
Serial clock input/output (3-wire serial I/O2)
Serial clock input/output (I²C bus)
Non-maskable interrupt request input
External interrupt request input
Clock output (for trimming main system clock and subsystem clock)
Buzzer output
Real-time output port that outputs data in synchronization with
trigger
Low-order address/data bus when external memory is connected
Middle-order address bus when external memory is connected
High-order address bus when external memory is connected
Note This function is available in µPD784255Y Subseries only.
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Data Sheet U12376EJ1V0DS00