AT91SAM7S32-AI ATMEL [ATMEL Corporation], AT91SAM7S32-AI Datasheet - Page 13
![no-image](/images/no-image-200.jpg)
AT91SAM7S32-AI
Manufacturer Part Number
AT91SAM7S32-AI
Description
AT91 ARM Thumb-based Microcontrollers
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.AT91SAM7S32-AI.pdf
(446 pages)
- Current page: 13 of 446
- Download datasheet (3Mb)
Memories
Memory Mapping
Internal SRAM
Internal Flash
6071A–ATARM–28-Oct-04
•
•
The AT91SAM7S32 embeds a high-speed 8-Kbyte SRAM bank. After reset and until the
Remap Command is performed, the SRAM is only accessible at address 0x0020 0000.
After Remap, the SRAM also becomes available at address 0x0.
The AT91SAM7S32 features one bank of 32 Kbytes of Flash. At any time, the Flash is
mapped to address 0x0010 0000. It is also accessible at address 0x0 after the reset and
before the Remap Command.
Figure 4. Internal Memory Mapping
32 Kbytes of Flash Memory
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–
–
–
–
–
–
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8 Kbytes of Fast SRAM
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256M Bytes
256 pages of 128 bytes
Fast access time, 30 MHz single-cycle access in worst case conditions
Page programming time: 4 ms, including page auto-erase
Page programming without auto-erase: 2 ms
Full chip erase time: 10 ms
10,000 write cycles, 10-year data retention capability
8 lock bits, each protecting 8 sectors of 32 pages
Protection Mode to secure contents of the Flash
Single-cycle access at full speed
0x0000 0000
0x0010 0000
0x0020 0000
0x0030 0000
0x000F FFFF
0x001F FFFF
0x002F FFFF
0x0FFF FFFF
AT91SAM7S32 Preliminary
Flash Before Remap
Undefined Areas
SRAM After Remap
Internal Flash
Internal SRAM
(Abort)
253 M Bytes
1 M Bytes
1 M Bytes
1 M Bytes
13
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