SAM9G20 Atmel Corporation, SAM9G20 Datasheet - Page 214

• 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

CP15 Test and Debug Registers
B-8
31
Figure B-4 Rd format for accessing PA and AP data of main or lockdown TLB entry
4.
To write an entry into the 2-way main TLB, the full sequence is therefore:
Bit
[31:10]
[9:8]
[7:4]
[3:2]
[1]
[0]
Copyright © 2001-2003 ARM Limited. All rights reserved.
The Rd register contains the read or write data as shown in Figure B-4.
Table B-6 describes the PA and access permission bit fields in the Rd register.
Use the following instruction to complete a write to an entry:
Name
PA
-
Domain select
AP
C
B
PA
Table B-6 Encoding of the TLB entry PA and AP bit fields
Definition
Physical address.
Should Be Zero.
Domain select:
b0000 = D0
b0001 = D1
.
.
.
b1110 = D14
b1111 = D15.
Access permission:
b00 = No access.
b01 = Privileged, read/write. User, no access.
b10 = Privileged, read/write. User read-only.
b11 = Privileged, read/write. User, read/write.
Cachable bit.
Bufferable bit.
10
9
SBZ
8
7
Domain
select
4 3
ARM DDI0198D
[1:0]
AP
2
C
1
B
0