SAM9G45 Atmel Corporation, SAM9G45 Datasheet - Page 61

• Manufacturer Part Number: SAM9G45
• Manufacturer: Atmel Corporation

Specifications of SAM9G45

• Flash (kbytes): 0 Kbytes
• Pin Count: 324
• Max. Operating Frequency: 400 MHz
• Cpu: ARM926
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 160
• Ext Interrupts: 160
• Usb Transceiver: 3
• Usb Speed: Hi-Speed
• Usb Interface: Host, Device
• Spi: 2
• Twi (i2c): 2
• Uart: 5
• Lin: 4
• Ssc: 2
• Ethernet: 1
• Sd / Emmc: 2
• Graphic Lcd: Yes
• Video Decoder: No
• Camera Interface: Yes
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 440
• Resistive Touch Screen: Yes
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 64
• Self Program Memory: NO
• External Bus Interface: 2
• Dram Memory: DDR2/LPDDR, SDRAM/LPSDR
• 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
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: No

2.3.12
2.3.13
ARM DDI0198D
Register c11 and c12
Process ID Register c13
It is not possible for a lockdown entry to entirely map either small or large pages, unless
all the subpage access permissions are identical. Entries can still be written into the
lockdown region, but the address range that is mapped only covers the subpage
corresponding to the address that was used to perform the page table walk.
Example 2-1 is a code sequence that locks down an entry to the current victim.
Accessing (reading or writing) these registers causes Unpredictable behavior.
Register c13 accesses the process identifier registers. The register accessed depends on
the value of the Opcode_2 field:
Opcode_2 = 0
Opcode_2 = 1
You can use the process ID register to determine the process that is currently running.
The process identifier is set to 0 at reset.
Copyright © 2001-2003 ARM Limited. All rights reserved.
Note
Selects the Fast Context Switch Extension (FCSE) Process
Identifier (PID) Register.
Selects the Context ID Register.
Example 2-1 Lock down an entry to the current victim
Programmer’s Model
2-33