SAM9X25 Atmel Corporation, SAM9X25 Datasheet - Page 106

• Manufacturer Part Number: SAM9X25
• Manufacturer: Atmel Corporation

Specifications of SAM9X25

• Flash (kbytes): 0 Kbytes
• Pin Count: 217
• Max. Operating Frequency: 400 MHz
• Cpu: ARM926
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 105
• Ext Interrupts: 105
• Usb Transceiver: 3
• Usb Speed: Hi-Speed
• Usb Interface: Host, Device
• Spi: 2
• Twi (i2c): 3
• Uart: 7
• Can: 2
• Lin: 4
• Ssc: 1
• Ethernet: 2
• Sd / Emmc: 2
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 12
• Adc Resolution (bits): 10
• Adc Speed (ksps): 440
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 32
• Self Program Memory: NO
• External Bus Interface: 1
• Dram Memory: DDR/LPDDR, SDRAM/LPSDR
• 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
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: No

Caches and Write Buffer
4-10
31
Table 4-7 shows values of S and NSETS for an ARM926EJ-S cache.
Figure 4-2 shows the ARM926EJ-S cache associativity. In Figure 4-2, the following
points apply:
•
•
Copyright © 2001-2003 ARM Limited. All rights reserved.
the group of tags of the same Index define a Set
the number of tags in a Set is the Associativity
Tag
Figure 4-2 ARM926EJ-S cache associativity
1
3
4
5
0
2
6
7
n
Table 4-7 Values of S and NSETS
ARM926EJ-S
cache size
4KB
8KB
16KB
32KB
64KB
128KB
TAG
S+5 S+4
Index
0
1
2
5 4
3
Word
ARM DDI0198D
S
5
6
7
8
9
10
2 1 0
NSETS
32
64
128
256
512
1024
Byte