SAM9G20 Atmel Corporation, SAM9G20 Datasheet - Page 217

• 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
31
SBZ
2.
3.
4.
To write an entry into the lockdown TLB, the full sequence is therefore:
To read an entry from the lockdown TLB, the entry must first be written using the above
instructions. The entry can then be read using the following instructions:
29
Bit
[31:29]
[28:26]
[25:0]
28
Indexed
Copyright © 2001-2003 ARM Limited. All rights reserved.
entry
Table B-8 describes the entry-select bit fields in the Rd register.
Use the following MMU Test Register instructions to access the MVA tag:
See Figure B-3 on page B-7 for read or write data in the Rd register.
Use the following MMU Test Register instructions to read or write the PA and
access permission data:
See Figure B-4 on page B-8 for the read or write data in the Rd register.
Use the following instruction to complete a write to an entry:
26
25
-
Indexed entry
-
Name
Table B-8 Encoding of the lockdown TLB entry-select bit fields
Figure B-6 Rd format for selecting lockdown TLB entry
Definition
Should Be Zero
Indexed entry in lockdown TLB
Should Be Zero
SBZ
CP15 Test and Debug Registers
B-11
0