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T89C5115-RATIM Datasheet(PDF) 22 Page - ATMEL Corporation

Part # T89C5115-RATIM
Description  Low Pin Count 8-bit MCU with A/D Converter and 16-Kbytes of Flash Memory
PDF  105 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

T89C5115-RATIM Datasheet(HTML) 22 Page - ATMEL Corporation

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T89C5115
4128A–8051–04/02
Figure 8. 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 (ERAM) 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
4Banks of
8Registers
R0-R7
30h
7Fh
(Bit Addresses 0-7Fh)
20h
2Fh
18h
1Fh
10h
17h
08h
0Fh
00h
07h



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