APU428 Ver la hoja de datos (PDF) - APLUS INTEGRATED CIRCUITS

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APU428

4-Bit Micro-controller With LCD Driver

APLUS INTEGRATED CIRCUITS 

APU428

Instruction

ALM X

ELC X

HALT

STOP

Machine Code

1111 101X XXXX XXXX

1111 110X XXXX XXXX

1111 1110 0000 0000

1111 1111 0000 0000

Function

X8,7,6=111: FREQ

X8,7,6=100: DC1

X8,7,6=011: PH3

X8,7,6=010: PH4

X8,7,6=001: PH5

X8,7,6=000: DC0

X5~0ҏЧҏPH15~10

X8=1 BCLKX

X8=0 PH0

X7,6=11 BCLK/8

X7,6=10 BCLK/4

X7,6=01 BCLK/2

X7,6=00 BCLK

X5,4=11 1/1

X5,4=10 1/2

X5,4=01 1/3

X5,4=00 1/4

X3,2=11 PH5

X3,2=10 PH6

X3,2=01 PH7

X3,2=00 PH8

X1,0=11 1/1

X1,0=10 1/2

X1,0=01 1/3

X1,0=00 1/4

HALT operation

STOP operation

Flag/Remark

ELP – CLK

BCLKX

ELP – DUTY

ELC – CLK

ELC – DUTY

Symbol description

AC:

Accumulator

D:

Immediate data

ACn: Accumulator bit-n

PC:

Program counter

X:

Address

CF:

Carry flag

Rx:

Memory of address X

Rxn: Memory bit-n of address X

WDF: Watchdog timer enable flag

Ry:

Memory of working register Y

HL:

Index register

BCF: Back-up flag

BCLK: System clock address

@HL: Memory of index RAM

IEFn: Interrupt enable flag

HRFn: HALT release flag

SRFn: Stop release enable flag

HEFn: HALT release enable flag

SCFn: Start condition flag

Cfq:

Clock source of frequency generator

Cch:

Clock source of chartering detector

Ctm: Clock source of timer

TMR: Timer overflow release flag

PDV: Predivider

SEFn: Switch enable flag

Lz:

LCD latch

FREQ: Frequency generator setting value

T@HL: Memory of index ROM

ADF: ADC flag

CSF: Clock source flag

DAC: Digital-to-analog converter output signal

LBR: Low-battery voltage reference

L:

Low address of index

H:

High address of index

RFOVF: RFC overflow flag

HT@HL: High nibble of index ROM

LT@HL: Low nibble of index ROM

Preliminary

18

Ver. 0.0

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