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UPD78044F Datasheet(PDF) 13 Page - NEC

Part # UPD78044F
Description  8-BIT SINGLE-CHIP MICROCONTROLLERS
PDF  90 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD78044F Datasheet(HTML) 13 Page - NEC

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µPD78F0034B, 78F0034BY, 78F0034B(A), 78F0034BY(A)
13
Data Sheet U16369EJ1V0DS
3. PIN FUNCTIONS
3.1 Port Pins (1/2)
Pin Name
I/O
Function
After Reset
Alternate
Function
P00
I/O
Port 0
Input
INTP0
P01
4-bit I/O port.
INTP1
P02
Input/output can be specified in 1-bit units.
INTP2
P03
An on-chip pull-up resistor can be specified by software.
INTP3/ADTRG
P10 to P17
Input
Port 1
Input
ANI0 to ANI7
8-bit input-only port.
P20
I/O
Port 2
Input
SI30
P21
6-bit I/O port.
SO30
P22
Input/output can be specified in 1-bit units.
SCK30
P23
An on-chip pull-up resistor can be specified by software.
RxD0
P24
TxD0
P25
ASCK0
P30
I/O
Port 3
N-ch open-drain I/O port.
Input
–
P31
7-bit I/O port.
LEDs can be driven directly.
P32
Input/output can be specified
SDA0Note 1
P33
in 1-bit units.
SCL0Note 1
P34
An on-chip pull-up resistor can be
SI31Note 2
P35
specified by software.
SO31Note 2
P36
SCK31Note 2
P40 to P47
I/O
Port 4
Input
AD0 to AD7
8-bit I/O port.
Input/output can be specified in 1-bit units.
An on-chip pull-up resistor can be specified by software.
Interrupt request flag KRIF is set to 1 by falling edge detection.
P50 to P57
I/O
Port 5
Input
A8 to A15
8-bit I/O port.
LEDs can be driven directly.
Input/output can be specified in 1-bit units.
An on-chip pull-up resistor can be specified by software.
P64
I/O
Port 6
Input
RD
P65
4-bit I/O port.
WR
P66
Input/output can be specified in 1-bit units.
WAIT
P67
An on-chip pull-up resistor can be specified by software.
ASTB
Notes 1.
SDA0 and SCL0 are incorporated only in the
µPD78F0034BY and 78F0034BY(A).
2.
SI31, SO31, and SCK31 are incorporated only in the
µPD78F0034B and 78F0034B(A).



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