SAM7X256 Atmel Corporation, SAM7X256 Datasheet - Page 682

• Manufacturer Part Number: SAM7X256
• Manufacturer: Atmel Corporation

Specifications of SAM7X256

• Flash (kbytes): 256 Kbytes
• Pin Count: 100
• Max. Operating Frequency: 55 MHz
• Cpu: ARM7TDMI
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 62
• Ext Interrupts: 62
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 2
• Twi (i2c): 1
• Uart: 3
• Can: 1
• Ssc: 1
• Ethernet: 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): 64
• Self Program Memory: NO
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 3.3
• Operating Voltage (vcc): 3.0 to 3.6
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 3
• Output Compare Channels: 3
• Input Capture Channels: 3
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: No

iv
SAM7X512/256/128
20 Fast Flash Programming Interface (FFPI) .......................................... 119
21 AT91SAM Boot Program ..................................................................... 135
22 Peripheral DMA Controller (PDC) ....................................................... 141
23 Advanced Interrupt Controller (AIC) .................................................. 151
24 Clock Generator ................................................................................... 177
25 Power Management Controller (PMC) ................................................ 181
19.3
20.1
20.2
20.3
21.1
21.2
21.3
21.4
21.5
22.1
22.2
22.3
22.4
23.1
23.2
23.3
23.4
23.5
23.6
23.7
23.8
24.1
24.2
24.3
24.4
25.1
25.2
25.3
Embedded Flash Controller (EFC ) User Interface ........................................113
Overview ........................................................................................................119
Parallel Fast Flash Programming ..................................................................119
Serial Fast Flash Programming .....................................................................128
Overview ........................................................................................................135
Flow Diagram ................................................................................................135
Device Initialization ........................................................................................135
SAM-BA Boot ................................................................................................136
Hardware and Software Constraints ..............................................................140
Overview ........................................................................................................141
Block Diagram ...............................................................................................141
Functional Description ...................................................................................142
Peripheral DMA Controller (PDC) User Interface ..........................................144
Overview ........................................................................................................151
Block Diagram ...............................................................................................151
Application Block Diagram .............................................................................152
AIC Detailed Block Diagram ..........................................................................152
I/O Line Description .......................................................................................152
Product Dependencies ..................................................................................153
Functional Description ...................................................................................154
Advanced Interrupt Controller (AIC) User Interface .......................................166
Overview ........................................................................................................177
Slow Clock RC Oscillator ...............................................................................177
Main Oscillator ...............................................................................................177
Divider and PLL Block ...................................................................................179
Description .....................................................................................................181
Master Clock Controller .................................................................................181
Processor Clock Controller ............................................................................182
6120I–ATARM–06-Apr-11