SAM9RL64 Atmel Corporation, SAM9RL64 Datasheet - Page 82

• Manufacturer Part Number: SAM9RL64
• Manufacturer: Atmel Corporation

Specifications of SAM9RL64

• Flash (kbytes): 0 Kbytes
• Pin Count: 217
• Max. Operating Frequency: 240 MHz
• Cpu: ARM926
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 118
• Ext Interrupts: 118
• Usb Transceiver: 1
• Usb Speed: Hi-Speed
• Usb Interface: Device
• Spi: 1
• Twi (i2c): 2
• Uart: 5
• Ssc: 2
• Sd / Emmc: 1
• Graphic Lcd: Yes
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 6
• Adc Resolution (bits): 10
• Adc Speed (ksps): 220
• Resistive Touch Screen: Yes
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 64
• 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): 1.08 to 1.32
• Fpu: No
• Mpu / Mmu: No / Yes
• Timers: 3
• Output Compare Channels: 3
• Input Capture Channels: 3
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: No

Memory Management Unit
3.2.10
3-18
31
31
31
31
31
31
Translating small page references
Coarse page table base address
Coarse page table base address
Translation base
Translation base
Page base address
Page base address
Figure 3-11 shows the complete translation sequence for a 4KB small page.
If a small page descriptor is included in a fine page table, the upper two bits of the page
index and low-order two bits of the fine page table index overlap. Each fine page table
entry for a small page must therefore be duplicated four times.
Translation table base
Second-level descriptor
First-level descriptor
Physical address
Copyright © 2001-2003 ARM Limited. All rights reserved.
14 13
14 13
31
12 11 10 9 8 7 6 5 4 3 2 1 0
12 11
AP3 AP2 AP1 AP0 C B 1 0
Figure 3-11 Small page translation from a coarse page table
10 9 8
10 9
Table index
Table index
L2 table index
Domain
Page index
5 4 3 2 1 0
1
Modified virtual address
20 19
2 1 0
2 1 0
0 0
0 1
0 0
0
0
table index
Level two
12 11
Page index
ARM DDI0198D
0