SAM9261 Atmel Corporation, SAM9261 Datasheet - Page 120
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SAM9261
Manufacturer Part Number
SAM9261
Description
Manufacturer
Atmel Corporation
Datasheets
1.SAM9260.pdf
(290 pages)
2.SAM9261.pdf
(248 pages)
3.SAM9261.pdf
(749 pages)
4.SAM9261.pdf
(44 pages)
5.SAM9261.pdf
(1274 pages)
6.SAM9261.pdf
(43 pages)
Specifications of SAM9261
Flash (kbytes)
0 Kbytes
Pin Count
217
Max. Operating Frequency
240 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
4
Ssc
3
Sd / Emmc
1
Graphic Lcd
Yes
Video Decoder
No
Camera Interface
No
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
160
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)
1.08 to 1.32
Fpu
No
Mpu / Mmu
No/Yes
Timers
3
Output Compare Channels
3
Input Capture Channels
3
32khz Rtc
Yes
Calibrated Rc Oscillator
No
- SAM9260 PDF datasheet
- SAM9261 PDF datasheet #2
- SAM9261 PDF datasheet #3
- SAM9261 PDF datasheet #4
- SAM9261 PDF datasheet #5
- SAM9261 PDF datasheet #6
- Current page: 120 of 290
- Download datasheet (5Mb)
ARM9E-S Coprocessor Interface
6.2
6-4
Coproc CPDOUT[31:0]
Coproc CPDIN[31:0]
LDC/STC
ARM processor pipeline
LATECANCEL
INSTR[31:0]
CHSD[1:0]
CHSE[1:0]
DnMREQ
DA[31:0]
InMREQ
DMORE
PASS
CLK
STC
LDC
shown in Figure 6-1, four words of data are transferred.
The number of words transferred is determined by how the coprocessor drives the
CHSD[1:0] and CHSE[1:0] buses. In the example ARM9E-S
As with all other instructions, the ARM9E-S processor core performs the main decode
using the rising edge of the clock during the Decode stage. From this, the core commits
to executing the instruction, and so performs an instruction fetch. The coprocessor
instruction pipeline keeps in step with the ARM9E-S by monitoring InMREQ.
Copyright © 2000 ARM Limited. All rights reserved.
Figure 6-1 ARM9E-S LDC/STC cycle timing
LDC/STC
ARM DDI 0165B
cycle timing
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