AT83SND2CMP3B datasheet(18/241 Pages) ATMEL

номер детали	AT83SND2CMP3B

подробное описание детали	Single-Chip Flash Microcontroller with MP3 Decoder with Full Audio Interface

PDF	241 Pages

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производитель	ATMEL [ATMEL Corporation]

домашняя страница	http://www.atmel.com

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4341F–MP3–03/06

AT8xC51SND2C/MP3B

Program/Code Memory

The AT8xC51SND2C execute up to 64K Bytes of program/code memory. Figure 6-1 shows the

split of internal and external program/code memory spaces depending on the product.

The AT83SND2C product provides the internal program/code memory in ROM memory while

the AT89C51SND2C product provides it in Flash memory. These 2 products do not allow exter-

nal code memory execution.

The Flash memory increases EPROM and ROM functionality by in-circuit electrical erasure and

programming. The high voltage needed for programming or erasing Flash cells is generated on-

chip using the standard VDD voltage, made possible by the internal charge pump. Thus, the

AT89C51SND2C can be programmed using only one voltage and allows In-application software

programming. Hardware programming mode is also available using common programming

tools. Se e the appl ication note ‘Pro gram min g T 89C51 x and AT 89C51x with Device

Programmers’.

The AT89C51SND2C implements an additional 4K Bytes of on-chip boot Flash memory pro-

vided in Flash memory. This boot memory is delivered programmed with a standard boot loader

software allowing In-System Programming (ISP). It also contains some Application Program-

ming Interface routines named API routines allowing In Application Programming (IAP) by using

user’s own boot loader.

Figure 6-1.

Program/Code Memory Organization

4K Bytes

Boot Flash

FFFFh

F000h

0000h

64K Bytes

Code Flash

FFFFh

AT89C51SND2C

0000h

64K Bytes

Code ROM

FFFFh

AT83SND2C

F000h

AT83SND2CMP3B датащи(PDF) 18 Page - ATMEL Corporation