HTG12B0 データシートの表示（PDF） - Holtek Semiconductor

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HTG12B0

4-Bit Microcontroller

Holtek Semiconductor 

Block Diagram

X IN

XO UT

O SCI

O SCO

RES

TEST1

TEST2

T1D

T512

VDD

VSS

VO U T1

VO U T2

VO U T3

VO U T4

C o n tro l

&

T im in g

C ir c u it

S ta c k

A LU

P ro g ra m

C o u n te r

ACC

ROM

R0

In s tr u c tio n

D ecoder

R1

ROM B

R2

RAM B

R3

LC D C

R4

T e m p o ra ry

D a ta R A M

D is p la y D a ta R A M

L C D D r iv e r

Note: ACC: Accumulator

R0~R4: Working registers

ROMB: ROM bank switch

RAMB: RAM bank switch

LCDC: LCD control register

PA, PB: I/O ports

PS, PM: Input ports

2

HTG12B0

T im e r

PA

PB

TM C LK

PA0

PA1

PA2

PA3

PB0

PB1

PB2

PB3

PS0

PS

PS1

PS2

PS3

PM 0

PM

PM 1

PM 2

PM 3

S ound

BZ

E ffe c t

BZ

V LC 1

V LC 2

V LC 3

V LC 4

September 8, 1999

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