Datasheet > G55C816PI-5

G55C816PI-5

更新时间： 2024-11-13 22:17:55

品牌	Logo	应用领域
CALMIRCO		微处理器
页数	文件大小	规格书
2页	118K
描述
CMOS 8/16-BIT MICROPROCESSOR FAMILY

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数据手册

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G55C816PI-5 数据手册

G65SC816

CALIFORNIA MICRO DEVICES

CMOS 8/16-BIT MICROPROCESSOR FAMILY

Features

Full 16-bit operation with 24 address lines for the

Advanced CMOS design for low power consumption

and increased noise immunity

16 MByte memory

Program selectable 8-bit mode for 6502 coding

compatibility Valid Program Address (VPA) and Valid

Data Address (VDA) outputs for dual cache and DMA

cycle steal implementation

Vector Pull (VP) output indicates when interrupt

vectors are being fetched. May be used for

vectoring/prioritizing interrupts

Abort interrupt and associated vector for interrupting

any instruction without modifying internal registers

Memory Lock (ML) for multiprocessor system

implementation

Emulation mode for total software compatibility

with 6502 designs

Full 16-bit ALU, Accumulator, Stack Pointer,

and Index Registers

Direct register for zero page addressing

24 addressing modes (including 13 original

6502 modes)

Wait for Interrupt (WAI) and Stop the Clock (STP)

instructions for reduced power consumption and

decreased interrupt latency

91 instructions with 255 opcodes

Co-Processor (COP) instruction and associated vector

Powerful Block Move instructions

40-pin DIP, 44-pin PLCC

Contact factory for complete data sheet.

Product Description

The G65SC816 is an advanced CMOS 16-bit microprocessor featuring total software compatibility with 8-bit NMOS and

CMOS 6500 series microprocessors. The G65SC816 provides 24 address lines for 16 Mbyte addressing, while providing

both 8-bit and 16-bit operation.

This microprocessor contains an Emulation (E) mode for emulating 8-bit NMOS and CMOS 6500 Series microprocessors.

A software switch determines whether the processor is in the 8-bit emulation mode or in the native 16-bit mode. This

allows existing 8-bit system designs to use the many powerful features of the G65SC816.

Block Diagram

INDEX X & Y STACK

INTERRUPT

POINTER REGS (16)

CONTROL

CONROL

SIGNALS

INSTRUCTION

DECODE

AND

RDY

ALU (16)

TIMING

AND

CLOCK GEN

Ø2 (IN)

Ø1 (OUT)

Ø2 (OUT)

CONTROL

ACCUMULATOR

(16)

A0 A15

PROGRAM

COUNTER (16)

DIRECT REG

(16)

R/W

SYNC

VPA

VDA

PROGRAM DATA

BANK RAGS (8)

SYSTEM

CONTROL

D0/BA0-D7/BA7

M/X

CPU

STATUS

REG

8/96

215 Topaz Street, Milpitas, California 95035

Tel: (408) 263-3214

Fax: (408) 263-7846

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