AT91SAM7S32B-AU-001 Atmel, AT91SAM7S32B-AU-001 Datasheet - Page 21
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AT91SAM7S32B-AU-001
Manufacturer Part Number
AT91SAM7S32B-AU-001
Description
8-Bit Microcontrollers
Manufacturer
Atmel
Datasheet
1.AT91SAM7S16-MU.pdf
(51 pages)
Specifications of AT91SAM7S32B-AU-001
Termination Type
SMD
Interface
I2C, SPI, UART
Embedded Interface Type
I2C, SPI, UART
Supply Voltage Max
3.6V
No. Of Adc Inputs
8
Flash Memory Size
32KB
No. Of I/o Pins
21
Core Size
32 Bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
8.7
8.7.1
8.7.2
8.7.3
6175IS–ATARM–30-Aug-10
Memory Mapping
Internal SRAM
Internal ROM
Internal Flash
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 AT91SAM7S Series embeds an Internal ROM. The ROM contains the FFPI and the
SAM-BA program.
The internal ROM is not mapped by default.
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 8-2.
• The AT91SAM7S512 embeds a high-speed 64-Kbyte SRAM bank.
• The AT91SAM7S256 embeds a high-speed 64-Kbyte SRAM bank.
• The AT91SAM7S128 embeds a high-speed 32-Kbyte SRAM bank.
• The AT91SAM7S64 embeds a high-speed 16-Kbyte SRAM bank.
• The AT91SAM7S321 embeds a high-speed 8-Kbyte SRAM bank.
• The AT91SAM7S32 embeds a high-speed 8-Kbyte SRAM bank.
• The AT91SAM7S161 embeds a high-speed 4-Kbyte SRAM bank.
• The AT91SAM7S16 embeds a high-speed 4-Kbyte SRAM bank
• The AT91SAM7S512 features two contiguous banks (dual plane) of 256 Kbytes of Flash.
• The AT91SAM7S256 features one bank (single plane) of 256 Kbytes of Flash.
• The AT91SAM7S128 features one bank (single plane) of 128 Kbytes of Flash.
• The AT91SAM7S64 features one bank (single plane) of 64 Kbytes of Flash.
• The AT91SAM7S321/32 features one bank (single plane) of 32 Kbytes of Flash.
• The AT91SAM7S161/16 features one bank (single plane) of 16 Kbytes of Flash.
256 MBytes
Internal Memory Mapping
0x0000 0000
0x0010 0000
0x0020 0000
0x000F FFFF
0x001F FFFF
0x002F FFFF
0x0030 0000
0x0FFF FFFF
AT91SAM7S Series Summary
Flash Before Remap
Undefined Areas
SRAM After Remap
Internal Flash
Internal SRAM
(Abort)
253 MBytes
1 MBytes
1 MBytes
1 MBytes
21