UPD780964 데이터 시트보기 (PDF) - NEC => Renesas Technology

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UPD780964

8-BIT SINGLE-CHIP MICROCOMPUTER

NEC => Renesas Technology 

µPD780016Y, 780018Y

3. PIN FUNCTIONS

3.1 Port Pins (1/2)

Pin Name

I/O

P00

P01

P02

P03

P04

P05

P06

P10 to P17

Input

Input/

output

Input

P20

P21

P22

P23

P24

P25-P27

P30

P31

P32

P33

P34

P35

P36

P37

P40 to P47

Input/

output

Input/

output

Input/

output

Port 0

7-bit I/O port

Function

Input only

Input/output can be specified bit-wise.

When used as an input port, on-chip pull-up resistor

can be used by software.

After Alternate

Reset Function Pin

Input INTP0/TI00

INTP1/TI01

INTP2

Input

INTP3

INTP4

INTP5

INTP6

Port 1

8-bit input port

On-chip pull-up resistor can be used by software.Note

Input

ANI0 to

ANI7

Port 2

8-bit input/output port

Input/output can be specified bit-wise.

When used as an input port, on-chip pull-up resistor can be used by software.

Input

SI1

SO1

SCK1

STB

BUSY

—

Port 3

TO0

8-bit input/output port

TO1

Input/output can be specified bit-wise.

When used as an input port, on-chip pull-up resistor can be used by software.

TO2

TI1

Input

TI2

PCL

BUZ

—

Port 4

8-bit input/output port

Input/output can be specified in 8-bit units.

When used as an input port, on-chip pull-up resistor can be used by software.

Test input flag (KRIF) is set to 1 by falling edge detection.

Input

AD0 to AD7

Note When using the P10/ANI0 to P17/ANI7 pins as the A/D converter analog input, on-chip pull-up resistor is

automatically disconnected.

9

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