SAM9G20 Atmel Corporation, SAM9G20 Datasheet - Page 824

• Manufacturer Part Number: SAM9G20
• Manufacturer: Atmel Corporation

Specifications of SAM9G20

• Flash (kbytes): 0 Kbytes
• Pin Count: 217
• Max. Operating Frequency: 400 MHz
• Cpu: ARM926
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 96
• Ext Interrupts: 96
• Usb Transceiver: 3
• Usb Speed: Full Speed
• Usb Interface: Host, Device
• Spi: 2
• Twi (i2c): 1
• Uart: 7
• Ssc: 1
• Ethernet: 1
• Sd / Emmc: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: Yes
• Adc Channels: 4
• Adc Resolution (bits): 10
• Adc Speed (ksps): 95
• 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): 0.9 to 1.1
• Fpu: No
• Mpu / Mmu: No/Yes
• Timers: 6
• Output Compare Channels: 6
• Input Capture Channels: 6
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: No

ii
AT91SAM9G20
10 Peripherals ............................................................................................. 30
11 ARM926EJ-S Processor Overview ....................................................... 39
12 AT91SAM9G20 Debug and Test ........................................................... 57
13 AT91SAM9G20 Boot Program .............................................................. 73
9.6
9.7
9.8
9.9
9.10 Advanced Interrupt Controller ............................................................................28
9.11 Debug Unit .........................................................................................................29
9.12 Chip Identification ...............................................................................................29
10.1 User Interface .....................................................................................................30
10.2 Identifiers ............................................................................................................30
10.3 Peripheral Signal Multiplexing on I/O Lines .......................................................31
10.4 Embedded Peripherals .......................................................................................35
11.1 Overview ............................................................................................................39
11.2 Block Diagram ....................................................................................................40
11.3 ARM9EJ-S Processor ........................................................................................41
11.4 CP15 Coprocessor .............................................................................................49
11.5 Memory Management Unit (MMU) .....................................................................51
11.6 Caches and Write Buffer ....................................................................................53
11.7 Bus Interface Unit ...............................................................................................55
12.1 Overview ............................................................................................................57
12.2 Block Diagram ....................................................................................................58
12.3 Application Examples .........................................................................................59
12.4 Debug and Test Pin Description ........................................................................60
12.5 Functional Description ........................................................................................61
13.1 Overview ............................................................................................................73
13.2 Flow Diagram .....................................................................................................73
13.3 Device Initialization ............................................................................................75
13.4 Valid Image Detection ........................................................................................77
13.5 Serial Flash Boot ................................................................................................78
13.6 DataFlash Boot Sequence .................................................................................79
13.7 NAND Flash Boot ...............................................................................................81
13.8 SDCard Boot ......................................................................................................81
Periodic Interval Timer .......................................................................................28
Watchdog Timer .................................................................................................28
Real-time Timer ..................................................................................................28
General-purpose Back-up Registers ..................................................................28
6384E–ATARM–05-Feb-10