AT91SAM7S256-AU-001 Atmel, AT91SAM7S256-AU-001 Datasheet - Page 20

• Manufacturer Part Number: AT91SAM7S256-AU-001
• Description: IC ARM7 MCU 32BIT 256K 64LQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7S256-AU-001

• Package / Case: 64-LQFP
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Operating Temperature: -40°C ~ 85°C
• Speed: 55MHz
• Number Of I /o: 32
• Core Processor: ARM7
• Program Memory Type: FLASH
• Ram Size: 64K x 8
• Program Memory Size: 256KB (256K x 8)
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Connectivity: I²C, SPI, SSC, UART/USART, USB
• Core Size: 16/32-Bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Other names: AT91SAM7S256AU001

Figure 8-1.
20
0xEFFF FFFF
0xFFFF FFFF
0x0FFF FFFF
0xF000 0000
0x0000 0000
0x1000 0000
AT91SAM7S Series Summary
AT91SAM7S512/256/128/64/321/32/161/16 Memory Mapping
Address Memory Space
Internal Peripherals
Internal Memories
Undefined
(Abort)
256 MBytes
14 x 256 MBytes
3,584 MBytes
256M Bytes
0xFFFB BFFF
0xFFFC BFFF
0xFFFC FFFF
0xFFFD BFFF
0xFFFD FFFF
0xFFFA FFFF
0xFFFB 3FFF
0xFFFB 7FFF
0xFFFB C000
0xFFFB FFFF
0xFFFC 3FFF
0xFFFC 7FFF
0xFFFC C000
0xFFFD 3FFF
0xFFFD 7FFF
0xFFFD C000
0xFFFE 3FFF
0xFFF9 FFFF
0xFFFA 3FFF
0xFFFC 0000
0xFFFC 4000
0xFFFC 8000
0xFFFD 0000
0xFFFD 4000
0xFFFD 8000
0xFFFF EFFF
0xFFFB 0000
0xFFFB 4000
0xFFFB 8000
0xFFFE 0000
0xFFFE 4000
0xFFFF F000
0xFFFF FFFF
0xFFFA 0000
0xFFFA 4000
0xF000 0000
0x0FFF FFFF
0x0000 0000
0x0010 0000
0x0020 0000
0x0030 0000
0x000F FFF
0x001F FFF
0x002F FFF
Peripheral Mapping
TC0, TC1, TC2
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
USART0
USART1
Internal Memory Mapping
PWMC
SYSC
UDP
ADC
SSC
TWI
SPI
Flash before Remap
SRAM after Remap
Internal SRAM
Internal Flash
Reserved
16 Kbytes
16 Kbytes
(Reserved on
AT91SAM7S32/16)
16 Kbytes
16 Kbytes
16 Kbytes
(Reserved on
AT91SAM7S32/16)
16 Kbytes
16 Kbytes
16 Kbytes
16 Kbytes
(1)
1 MBytes
1 MBytes
1 MBytes
253 MBytes
Note:
(1) Can be Flash or SRAM
depending on REMAP.
0xFFFF F600
0xFFFF FCFF
0xFFFF FBFF
0xFFFF FC00
0xFFFF FD00
0xFFFF FD0F
0xFFFF FD20
0xFFFF FC2F
0xFFFF FD30
0xFFFF FC3F
0xFFFF FD40
0xFFFF FD4F
0xFFFF FD60
0xFFFF FC6F
0xFFFF FD70
0xFFFF FEFF
0xFFFF FFFF
0xFFFF F1FF
0xFFFF F3FF
0xFFFF F5FF
0xFFFF FF00
System Controller Mapping
0xFFFF F000
0xFFFF F200
0xFFFF F400
Reserved
Reserved
Reserved
Reserved
DBGU
RSTC
VREG
PIOA
WDT
PMC
RTT
AIC
PIT
MC
6175FS–ATARM–03-Dec-07
512 Bytes/
128 registers
512 Bytes/
128 registers
512 Bytes/
128 registers
256 Bytes/
64 registers
16 Bytes/
4 registers
16 Bytes/
4 registers
16 Bytes/
4 registers
16 Bytes/
4 registers
4 Bytes/
1 register
256 Bytes/
64 registers