SAM9G20 Atmel Corporation, SAM9G20 Datasheet - Page 214
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SAM9G20
Manufacturer Part Number
SAM9G20
Description
Manufacturer
Atmel Corporation
Datasheets
1.SAM9261.pdf
(248 pages)
2.SAM9261.pdf
(1274 pages)
3.SAM9261.pdf
(43 pages)
4.SAM9G20.pdf
(42 pages)
5.SAM9G20.pdf
(832 pages)
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
- SAM9261 PDF datasheet
- SAM9261 PDF datasheet #2
- SAM9261 PDF datasheet #3
- SAM9G20 PDF datasheet #4
- SAM9G20 PDF datasheet #5
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- Download datasheet (2Mb)
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
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