SAM9G20 Atmel Corporation, SAM9G20 Datasheet - Page 105

• 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

4.5
ARM DDI0198D
Cache MVA and Set/Way formats
Vitual index, virtual tag
This section shows how the MVA and Set/Way formats of ARM926EJ-S caches map to
a generic virtually indexed, virtually addressed cache.
Figure 4-1 shows a generic, virtually indexed, virtually addressed cache.
The ARM926EJ-S cache format is shown in Figure 4-2 on page 4-10.
Tag
Copyright © 2001-2003 ARM Limited. All rights reserved.
0
1
2
3
4
5
6
7
n
1
2
3
4
5
6
7
n
Index
TAG
1
2
3
4
5
6
7
n
Hit
=
Figure 4-1 Generic virtually indexed virtually addressed cache
TA
1
2
3
4
5
6
7
n
G
=
TA
G
=
Word
TA
0
G
=
1
2
Byte
3
0
1
2
Read data
Caches and Write Buffer
m
m
m
m
4-9