SAM9G20 Atmel Corporation, SAM9G20 Datasheet - Page 159

• 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

ARM DDI0198D
This is one technique for generating a clock that reflects the ARM9EJ-S core pipeline
advancing. If CPCLKEN is LOW on the rising edge of CPCLK then the ARM9EJ-S
core pipeline is stalled and the coprocessor pipeline should not advance.
Coprocessor instructions
There are three classes of coprocessor instructions:
LDC or STC
MCR/MCRR or MRC/MRRC
CDP
Examples of how a coprocessor must execute these instruction classes are given in:
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Copyright © 2001-2003 ARM Limited. All rights reserved.
LDC/STC on page 8-4
MCR/MRC on page 8-6
CDP on page 8-8.
Load coprocessor register from memory or store coprocessor
register to memory.
Register transfer between the coprocessor and the ARM processor
core.
Coprocessor data operation.
Coprocessor Interface
8-3