UPD78F0138 NEC, UPD78F0138 Datasheet - Page 91

• Manufacturer Part Number: UPD78F0138
• Description: (UPD78xxxx) 8-Bit Single-Chip Microcontrollers
• Manufacturer: NEC

Note SO11, SI11, SCK11, SSI11, TI001, TI011, and TO01 are available only in the
P00
P01
P02
P03
P04
P05
P06
P10
P11
P12
P13
P14
P15
P16
P17
P20 to P27
P30 to P32
P33
P40 to P43
P50 to P53
P60 to P63
P70 to P77
Pin Name
780136, 780138, and 78F0138.
I/O
I/O
Input
I/O
I/O
I/O
I/O
I/O
I/O
Port 0.
7-bit I/O port.
Input/output can be specified in 1-bit units.
Use of an on-chip pull-up resistor can be specified by a
software setting.
Port 1.
8-bit I/O port.
Input/output can be specified in 1-bit units.
Use of an on-chip pull-up resistor can be specified by a
software setting.
Port 2.
8-bit input-only port.
Port 3.
4-bit I/O port.
Input/output can be specified in 1-bit units.
Use of an on-chip pull-up resistor can be specified by a
software setting.
Port 4.
4-bit I/O port.
Input/output can be specified in 1-bit units.
Use of an on-chip pull-up resistor can be specified by a
software setting.
Port 5.
4-bit I/O port.
Input/output can be specified in 1-bit units.
Use of an on-chip pull-up resistor can be specified by a
software setting.
Port 6.
4-bit I/O port (N-ch open drain).
Input/output can be specified in 1-bit units.
Use of an on-chip pull-up resistor can be specified by a mask
option only for mask ROM versions.
Port 7.
8-bit I/O port.
Input/output can be specified in 1-bit units.
Use of an on-chip pull-up resistor can be specified by a
software setting.
Table 4-2. Port Functions (1/2)
CHAPTER 4 PORT FUNCTIONS
User’s Manual U16228EJ2V0UD
Function
µ
Input
Input
Input
Input
Input
Input
Input
Input
After Reset
PD780133, 780134, 78F0134,
Alternate Function
TI000
TI010/TO00
SO11
SI11
SCK11
SSI11
TI011
SCK10/TxD0
SI10/RxD0
SO10
TxD6
RxD6
TOH0
TOH1/INTP5
TI50/TO50
ANI0 to ANI7
INTP1 to INTP3
INTP4/TI51/TO51
KR0 to KR7
Note
Note
Note
Note
Note
/TO01
−
−
−
/TI001
Note
Note
91