AT90S8515 데이터 시트보기 (PDF) - Atmel Corporation

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AT90S8515

8-bit Microcontroller with 8K Bytes In-System Programmable Flash

Atmel Corporation 

AT90S8515

In the different addressing modes these address registers have functions as fixed dis-

placement, automatic increment and decrement (see the descriptions for the different

instructions).

ALU – Arithmetic Logic

Unit

The high-performance AVR ALU operates in direct connection with all the 32 general-

purpose working registers. Within a single clock cycle, ALU operations between regis-

ters in the register file are executed. The ALU operations are divided into three main

categories: arithmetic, logical and bit functions.

In-System Programmable

Flash Program Memory

The AT90S8515 contains 8K bytes On-chip In-System Programmable Flash memory for

program storage. Since all instructions are 16- or 32-bit words, the Flash is organized as

4K x 16. The Flash memory has an endurance of at least 1000 write/erase cycles. The

AT90S8515 Program Counter (PC) is 12 bits wide, thus addressing the 4096 program

memory addresses.

See page 86 for a detailed description of Flash data downloading.

See page 13 for the different program memory addressing modes.

11

0841G–09/01

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