AT91SAM7X256B-AU Atmel, AT91SAM7X256B-AU Datasheet - Page 267

• Manufacturer Part Number: AT91SAM7X256B-AU
• Description: IC MCU 256KB FLASH 100LQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7X256B-AU

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 55MHz
• Connectivity: CAN, Ethernet, I²C, SPI, SSC, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 62
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 64K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-LQFP
• Package: 100LQFP
• Device Core: ARM7TDMI
• Family Name: 91S
• Maximum Speed: 55 MHz
• Operating Supply Voltage: 1.8|3.3 V
• Data Bus Width: 32 Bit
• Number Of Programmable I/os: 62
• Interface Type: CAN/Ethernet/SPI/I2S/TWI/USART/USB
• On-chip Adc: 8-chx10-bit
• Number Of Timers: 3
• Controller Family/series: AT91SAM7xxxxx
• No. Of I/o's: 62
• Ram Memory Size: 64KB
• Cpu Speed: 55MHz
• No. Of Timers: 1
• Rohs Compliant: Yes
• Cpu Family: 91S
• Device Core Size: 32b
• Frequency (max): 55MHz
• Total Internal Ram Size: 64KB
• # I/os (max): 62
• Number Of Timers - General Purpose: 3
• Operating Supply Voltage (typ): 1.8/3.3V
• Operating Supply Voltage (max): 1.95/3.6V
• Operating Supply Voltage (min): 1.65/3V
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 100
• Package Type: LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Compliant

28.7
Table 28-3.
6120H–ATARM–17-Feb-09
0x004C - 0x00FC
0x004C - 0x00F8
0x100 - 0x124
0x20 - 0x2C
Offset
0x0C
0x1C
0x3C
0x00
0x04
0x08
0x10
0x14
0x18
0x30
0x34
0x38
Serial Peripheral Interface (SPI) User Interface
Register Mapping
Register
Control Register
Mode Register
Receive Data Register
Transmit Data Register
Status Register
Interrupt Enable Register
Interrupt Disable Register
Interrupt Mask Register
Reserved
Chip Select Register 0
Chip Select Register 1
Chip Select Register 2
Chip Select Register 3
Reserved
Reserved
Reserved for the PDC
AT91SAM7X512/256/128 Preliminary
SPI_CSR0
SPI_CSR1
SPI_CSR2
SPI_CSR3
SPI_RDR
SPI_TDR
SPI_IMR
SPI_IDR
SPI_MR
SPI_IER
SPI_CR
SPI_SR
Name
–
–
Read-write
Read-write
Read-write
Read-write
Read-write
Write-only
Read-only
Write-only
Read-only
Write-only
Write-only
Read-only
Access
–
–
0x000000F0
Reset
0x0
0x0
0x0
0x0
0x0
0x0
0x0
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