LC651154N datasheet(8/39 Pages) SANYO

8 / 39 page

No. 6278-8/39

LC651154N, 651154F, 651154L, 651152N, 651152F, 651152L

Continued from preceding page.

Symbol

Number

I/O

Function

Option

At reset

Handling when

of pins

unused

PE0-PE1/

WDR

I/O

• I/O port E0 to E1

Input in 4-bit units (IP instruction)

Output in 4-bit units (OP instruction)

Set and reset in 1-bit units (SPB and RPB

instructions)

Testing in 1-bit units (BP and BNP instructions)

• PE0 also has a continuous pulse (64·Tcyc) output

function.

• PE1 becomes the watchdog reset pin WDR when

selected for such as an option.

(1) Open-drain output

(2) Pull-up resistor

• Options (1) and (2) can be

specified in bit units

(3) Normal port PE1

(4) Watchdog reset WDR

• Either options (3) and (4)

may be specified.

High-level

output (The

output n-

channel

transistors in

the off state.)

Identical to

those for PA0

to PA3

PF0/SI

PF1/SO

PF2/SCK

PF3/INT

I/O

• I/O port F0 to F3

The port functions and options are identical to

those of PE0 to PE1 (See note.)

• PF0 to PF3 have shared functions as the serial

interface pins and the INT input.

The function can be selected under program

control.

SI ... Serial input pin

SO ... Serial output pin

SCK ... Input and output of the serial clock signal

INT ... Interrupt request input

The serial I/O function can be switched between 4-

bit and 8-bit transfers under program control.

Note: There is no continuous pulse output function.

Identical to those for PA0 to PA3

Identical to

those for PA0

to PA3

The serial port

functions are

disabled.

The interrupt

source is set

to INT.

Identical to

those for PA0

to PA3

PG0-PG3/

AD4-AD7

I/O

• I/O port G0 to G3

The port functions and options are identical to

those of PE0 to PE1 (See note.)

Note: There is no continuous pulse output function.

• All four pins have shared functions.

PG0/AD4 - A/D converter input AD4

PG1/AD5 - A/D converter input AD5

PG2/AD6 - A/D converter input AD6

PG3/AD7 - A/D converter input AD7

Identical to those for PA0 to PA3

Identical to

those for PA0

to PA3

Identical to

those for PA0

to PA3

AV+

1—

A/D converter reference voltage input

—

Connect to

VSS.

• System reset input

• Applications must provide an external capacitor for

the power-on reset.

• Apply a low level to this pin for 4 clock cycles to

effect and reset start.

——

—

AV–

1—

RES

Input

• IC test pin

This pin must be connected to VSS during normal

operation.

——

This pin must

be connected

to VSS.

TEST

Input

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