SAM9260 Atmel Corporation, SAM9260 Datasheet - Page 97
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SAM9260
Manufacturer Part Number
SAM9260
Description
Manufacturer
Atmel Corporation
Datasheets
1.M40800.pdf
(284 pages)
2.M40800.pdf
(153 pages)
3.SAM9260.pdf
(290 pages)
4.SAM9260.pdf
(802 pages)
5.SAM9260.pdf
(47 pages)
Specifications of SAM9260
Flash (kbytes)
0 Kbytes
Pin Count
217
Max. Operating Frequency
210 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)
312
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
8
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
Fpu
No
Mpu / Mmu
No / Yes
Timers
6
Output Compare Channels
6
Input Capture Channels
6
32khz Rtc
Yes
Calibrated Rc Oscillator
No
- M40800 PDF datasheet
- M40800 PDF datasheet #2
- SAM9260 PDF datasheet #3
- SAM9260 PDF datasheet #4
- SAM9260 PDF datasheet #5
- Current page: 97 of 284
- Download datasheet (2Mb)
ARM DDI 0029G
Access type
Word
Halfword
Byte
For subword reads the value is placed in the ARM register in the least significant bits
regardless of the byte lane used to read the data. For example, a byte read on A[1:0] =
01 in a little-endian system means that the byte is read on bits D[15:8] but is placed in
the ARM register bits [7:0].
Writes
When the ARM7TDMI processor performs a byte or halfword write, the data being
written is replicated across the data bus, as shown in Figure 3-20 on page 3-28. The
memory system can use the most convenient copy of the data.
A writable memory system must be capable of performing a write to any single byte in
the memory system. This capability is required by the ARM C Compiler and the debug
tool chain.
Note
MAS[1:0]
10
01
01
00
00
00
00
Copyright © 1994-2001. All rights reserved.
A[1:0]
XX
0X
1X
00
01
10
11
Little-endian BIGEND = 0
D[31:0]
D[15:0]
D[31:16]
D[7:0]
D[15:8]
D[23:16]
D[31:24]
Big-endian BIGEND = 1
D[31:0]
D[31:16]
D[15:0]
D[31:24]
D[23:16]
D[15:8]
D[7:0]
Table 3-7 Read accesses
Memory Interface
3-27
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