SM5K3 查看數據表（PDF） - Sharp Electronics

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产品描述 (功能)

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SM5K3

4-Bit Single-Chip Microcomputers (Controllers With 10-Bit A/D Converter)

Sharp Electronics 

BLOCK DIAGRAM

SM5K3/SM5K4/SM5K5

ROM

2 048-BYTE

DEC

RAM

128 x 4-BIT

DEC

X (4)

VDD

GND

OSCIN

OSCOUT

RESET

PU (5) PL (6)

BM (4) BL (4)

SR x 4

SR (8)

PRESCALER

OSC

RC RB

RA

RE

IME

INTERRUPT

CONTROLLER

INT

IFT IFA IFB

FR

R3

P0

P1

P2

P3

A (4)

C

ALU

R8

R9

A/D

VR

AGND

P4

P5

Nomenclature

A

: A register

A/D

: A/D converter unit

ALU

: Arithmetic logic unit

BM, BL

: RAM address register

C

: Carry flag

IFA, IFB, IFT : Interrupt request flag

IME

: Interrupt master enable flag

INST. DEC. : Instruction decoder

INT

: Interrupt control unit

P0-P5

: Port register

PU, PL

: Program counter

R8, R9, RC, RE, RF : Mode register

RA

: Count register

RB

: Modulo register

SB

: SB register

SR

: Stack register

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