Z8F082ASH020EC datasheet(22/244 Pages) ZILOG

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PS024705-0405

P R E L I M I N A R Y

Overview

Z8 Encore! XP® F08xA Series

Product Specification

CPU and Peripheral Overview

eZ8 CPU Features

The eZ8 CPU, ZiLOG®’s latest 8-bit Central Processing Unit (CPU), meets the continuing

demand for faster and more code-efficient microcontrollers. The eZ8 CPU 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 much greater depth in subroutine calls and interrupts than

hardware stacks

• Compatible with existing Z8® code

• Expanded internal Register File allows access of up to 4KB

• 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

• 2 to 9 clock cycles per instruction

For more information regarding the eZ8 CPU, refer to the eZ8 CPU User Manual avail-

able for download at www.zilog.com.

General Purpose I/O

The Z8 Encore! XP® F08xA Series features 6 to 25 port pins (Ports A–D) for general pur-

pose I/O (GPIO). The number of GPIO pins available is a function of package. Each pin is

individually programmable.

Flash Controller

The Flash Controller programs and erases Flash memory. The Flash Controller supports

protection against accidental program and erasure.

Z8F082ASH020EC датащи(PDF) 22 Page - Zilog, Inc.