SAM7SE256 Atmel Corporation, SAM7SE256 Datasheet - Page 670

• Manufacturer Part Number: SAM7SE256
• Manufacturer: Atmel Corporation

Specifications of SAM7SE256

• Flash (kbytes): 256 Kbytes
• Pin Count: 144
• Max. Operating Frequency: 48 MHz
• Cpu: ARM7TDMI
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 88
• Ext Interrupts: 88
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 1
• Twi (i2c): 1
• Uart: 3
• Ssc: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 384
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 32
• Self Program Memory: NO
• External Bus Interface: 1
• Dram Memory: sdram
• Nand Interface: Yes
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8/3.3
• Operating Voltage (vcc): 3.0 to 3.6
• Fpu: No
• Mpu / Mmu: Yes / No
• Timers: 3
• Output Compare Channels: 3
• Input Capture Channels: 3
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: No

30 Debug Unit (DBGU) .............................................................................. 299
31 Serial Peripheral Interface (SPI) .......................................................... 323
32 Two Wire Interface (TWI) ..................................................................... 349
33 Universal Synchronous Asynchronous Receiver Transceiver
34 Parallel Input Output Controller (PIO) ................................................ 437
vi
(USART) ................................................................................................ 389
30.1 Overview ............................................................................................................299
30.2 Block Diagram ...................................................................................................300
30.3 Product Dependencies ......................................................................................301
30.4 UART Operations ..............................................................................................301
30.5 Debug Unit User Interface ................................................................................308
31.1 Overview ............................................................................................................323
31.2 Block Diagram ...................................................................................................324
31.3 Application Block Diagram .................................................................................324
31.4 Signal Description .............................................................................................325
31.5 Product Dependencies ......................................................................................325
31.6 Functional Description .......................................................................................326
31.7 Serial Peripheral Interface (SPI) User Interface ................................................335
32.1 Overview ............................................................................................................349
32.2 List of Abbreviations ..........................................................................................349
32.3 Block Diagram ...................................................................................................350
32.4 Application Block Diagram .................................................................................350
32.5 Product Dependencies ......................................................................................351
32.6 Functional Description .......................................................................................352
32.7 Master Mode ......................................................................................................353
32.8 Multi-master Mode .............................................................................................364
32.9 Slave Mode ........................................................................................................367
32.10 Two-wire Interface (TWI) User Interface .........................................................375
33.1 Overview ............................................................................................................389
33.2 Block Diagram ...................................................................................................390
33.3 Application Block Diagram .................................................................................391
33.4 I/O Lines Description ........................................................................................391
33.5 Product Dependencies ......................................................................................392
33.6 Functional Description .......................................................................................393
33.7 USART User Interface ......................................................................................418
SAM7SE512/256/32
6222F–ATARM–14-Jan-11