Zilog Z8F0880 Instrukcja Użytkownika Pobierz pdf (Strona 9)

Z8 Encore! XP

F1680 28-Pin Series Development Kit

User Manual

UM020305-0508 Introduction

For more information on Z8 Encore! XP F1680 Series, refer to

Z8 Encore! XP

F1680 Series Product Specification (PS0250), available

for download at www.zilog.com

CPU

Zilog’s eZ8

CPU, latest 8-bit CPU meets the continuing demand for

faster and more code-efficient microcontrollers. It executes a superset of

the original Z8

instruction set. The eZ8 CPU features include:

•

Direct register-to-register architecture allows each register to function

as an accumulator, improving execution time and decreasing the

required Program Memory

•

Software stack allows greater depth in sub-routine calls and interrupts

more than hardware stacks

•

Compatible with existing Z8 code

•

Expanded internal Register File allows access up to 4 KB

•

New instructions improve execution efficiency for code developed

using higher-level programming languages including C

•

Pipelined instruction fetch and execution

•

New instructions for improved performance including BIT, BSWAP,

BTJ, CPC, LDC, LDCI, LEA, MULT, and SRL

•

New instructions support 12-bit linear addressing of the register file

•

Up to 10 MIPS operation

•

C-Compiler friendly

•

Two to nine clock cycles per instruction

For more details on eZ8 CPU, refer to eZ8

CPU User Manual

(UM0128) available for download at www.zilog.com

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