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UPD780138 Datasheet(PDF) 40 Page - NEC

No. de Pieza. UPD780138
Descripción  8-Bit Single-Chip Microcontrollers
Descarga  558 Pages
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Fabricante  NEC [NEC]
Página de inicio  http://www.nec.com/
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UPD780138 Datasheet(HTML) 40 Page - NEC

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CHAPTER 2 PIN FUNCTIONS
User’s Manual U16228EJ2V0UD
40
2.2 Description of Pin Functions
2.2.1 P00 to P06 (port 0)
P00 to P06 function as a 7-bit I/O port. These pins also function as timer I/O, serial interface data I/O, clock I/O,
and chip select input.
The following operation modes can be specified in 1-bit units.
(1) Port mode
P00 to P06 function as a 7-bit I/O port. P00 to P06 can be set to input or output in 1-bit units using port mode
register 0 (PM0). Use of an on-chip pull-up resistor can be specified by pull-up resistor option register 0 (PU0).
(2) Control mode
P00 to P06 function as timer I/O, serial interface data I/O, clock I/O, and chip select input.
(a) TI000, TI001
Note
These are the pins for inputting an external count clock to 16-bit timer/event counters 00 and 01 and are also
for inputting a capture trigger signal to the capture registers (CR000, CR010 or CR001, CR011) of 16-bit
timer/event counters 00 and 01.
(b) TI010, TI011
Note
These are the pins for inputting a capture trigger signal to the capture register (CR000 or CR001) of 16-bit
timer/event counters 00 and 01.
(c) TO00, TO01
Note
These are timer output pins.
(d) SI11
Note
This is a serial interface serial data input pin.
(e) SO11
Note
This is a serial interface serial data output pin.
(f)
SCK11
Note
This is the serial interface serial clock I/O pin.
(g) SSI11
Note
This is the serial interface chip select input pin.
Note SO11, SI11, SCK11, SSI11, TI001, TI011, and TO01 are available only in the
µPD780133, 780134,
78F0134, 780136, 780138, and 78F0138.


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