SAM9G45 Atmel Corporation, SAM9G45 Datasheet - Page 105

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SAM9G45

Manufacturer Part Number
SAM9G45
Description
Manufacturer
Atmel Corporation
Datasheets

Specifications of SAM9G45

Flash (kbytes)
0 Kbytes
Pin Count
324
Max. Operating Frequency
400 MHz
Cpu
ARM926
Hardware Qtouch Acquisition
No
Max I/o Pins
160
Ext Interrupts
160
Usb Transceiver
3
Usb Speed
Hi-Speed
Usb Interface
Host, Device
Spi
2
Twi (i2c)
2
Uart
5
Lin
4
Ssc
2
Ethernet
1
Sd / Emmc
2
Graphic Lcd
Yes
Video Decoder
No
Camera Interface
Yes
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
440
Resistive Touch Screen
Yes
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
64
Self Program Memory
NO
External Bus Interface
2
Dram Memory
DDR2/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
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

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