T89C5115-RATIM datasheet(25/113 Pages) ATMEL

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T89C5115-RATIM 데이터시트(PDF) 25 Page - ATMEL Corporation

부품명	T89C5115-RATIM

상세설명	Low Pin Count 8-bit Microcontroller with A/D Converter and 16 KBytes Flash Memory

PDF	113 Pages

Scroll/Zoom	100%

제조업체	ATMEL [ATMEL Corporation]

홈페이지	http://www.atmel.com

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25 / 113 page

AT89C5115

4128G–8051–02/08

Figure 10. Lower 128 Bytes Internal RAM Organization

Upper 128 Bytes RAM

The upper 128 Bytes of RAM are accessible from address 80h to FFh using only indirect

addressing mode.

Expanded RAM

The on-chip 256 Bytes of expanded RAM (XRAM) are accessible from address 0000h to

00FFh using indirect addressing mode through MOVX instructions. In this address

range.

Note:

Lower 128 Bytes RAM, Upper 128 Bytes RAM, and expanded RAM are made of volatile

memory cells. This means that the RAM content is indeterminate after power-up and

must then be initialized properly.

bit-Addressable Space

4 Banks of

8 Registers

R0-R7

30h

7Fh

(bit Addresses 0-7Fh)

20h

2Fh

18h

1Fh

10h

17h

08h

0Fh

00h

07h

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