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AT89C5132-ROTIL Datasheet(PDF) 11 Page - ATMEL Corporation |
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AT89C5132-ROTIL Datasheet(HTML) 11 Page - ATMEL Corporation |
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11 / 38 page  13 AT89C5132 4173CS–USB–07/04 Address Spaces The AT8xC5132 derivatives implement four different address spaces: • Program/Code Memory • Boot Memory • Data Memory • Special Function Registers (SFRs) Code Memory The AT89C5132 implements 64K Bytes of on-chip program/code memory in Flash technology. The Flash memory increases ROM functionality by enabling in-circuit electrical erasure and programming. Thanks to the internal charge pump, the high voltage needed for pro- gramming or erasing Flash cells is generated on-chip using the standard VDD voltage. Thus, the AT89C5132 can be programmed using only one voltage and allows in applica- tion software programming commonly known as IAP. Hardware programming mode is also available using specific programming tools. Boot Memory The AT89C5132 implements 4K Bytes of on-chip boot memory provided in Flash tech- nology. This boot memory is delivered programmed with a standard bootloader software allowing in system programming commonly known as ISP. It also contains some Appli- cation Programming Interfaces routines commonly known as API allowing user to develop his own bootloader. Data Memory The AT89C5132 derivatives implement 2304 bytes of on-chip data RAM. This memory is divided in two separate areas: • 256 bytes of on-chip RAM memory (standard C51 memory). • 2048 bytes of on-chip expanded RAM memory (ERAM accessible via MOVX instructions). |
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