SAM9G20 Atmel Corporation, SAM9G20 Datasheet - Page 107

• 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
Way
32-A
31-A
•
•
•
The Set/Way/Word format for ARM926EJ-S caches is shown in Figure 4-3.
In Figure 4-3:
A = log
For example, for a four-way cache A = 2.
S = log
Copyright © 2001-2003 ARM Limited. All rights reserved.
the ARM926EJ-S caches are four-way Associative
the range of tags addressed by the Index define a Way
the number of tags in a Way is the number of Sets, NSETS.
2
2
NSETS.
Associativity.
SBZ
Figure 4-3 ARM926EJ-S cache Set/Way/Word format
S+5 S+4
Set select
(= Index)
Caches and Write Buffer
5 4
Word
2 1 0
SBZ
4-11