SAM9X25 Atmel Corporation, SAM9X25 Datasheet - Page 174

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SAM9X25

Manufacturer Part Number
SAM9X25
Description
Manufacturer
Atmel Corporation
Datasheets

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
Instruction Memory Barrier
9.2.4
9.2.5
9-4
Invalidate the ICache
Flush the prefetch buffer
The ICache must be invalidated to remove any stale copies of instructions that are no
longer valid. If the ICache is not being used, or the modified regions are not in cachable
areas of memory, then this might not be required.
To ensure consistency, the prefetch buffer should be flushed before self-modifying code
is executed. See Self modifying code on page 7-2.
Copyright © 2001-2003 ARM Limited. All rights reserved.
ARM DDI0198D

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