ASM0912CB View Datasheet(PDF) - APLUS INTEGRATED CIRCUITS

Part Name

Description

Manufacturer

ASM0912CB

VERY LOW-COST VOICE SYNTHESIZER WITH 4-BIT MICROPROCESSOR

APLUS INTEGRATED CIRCUITS 

FIGURE 1.1 : Block Diagram of ASM0912CB

ASM0912CB

Data Bus[3:0]

PCLATCH(8)

ROM Latch

PCH(8)

(ADDR[14:12])

=0000b

DPR3,2,1

PCL(4)

PC[11:0]

ADDR[14:0]

DPR[14:0]

Stack(12)

(2-Level)

0 ROM_ADDR[14:0]

1

Program

(Data)

ROM

Instruction

Latch

Instruction Bus [9:0]

Instruction

Decoder

Control Signal

DLATCH(10)

ROM_Data[9:0]

Data Bus[3:0]

Instruction Bus [9:0]

Accumlator(4)

ALU(4)

Register(4)

Immediate(4)

SRAM

(96 x 4)

00h-1Fh

40h-7Fh

COUT

P1,P2,P3,P4

enter test mode

One-Channel

( Voice synthesizer )

Reset Chip

Reset Chip

COUT

Clock Generator

Test select

Power on Reset

RESET pin

Timer0(9)

PRA(4)

PRB(4)

PRC(4)

OSC

VDD/GND

weak or strong

pull-low for PRA,

PRB, PRC

PRASL(4)

2

Rev 1.0

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