SAM9261 Atmel Corporation, SAM9261 Datasheet - Page 136
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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
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ARM9E-S Coprocessor Interface
6.11.2
6-20
Connecting multiple coprocessors
The RDATA enable term (asel) is specially constructed to select the coprocessor output
data during
to the ARM9E-S RDATA and WDATA buses while still allowing tracing of
STC
If you have multiple coprocessors in your system, connect the handshake signals as
shown in Table 6-2.
You must also multiplex the output data from the coprocessors.
The handshaking arrangement for a two-coprocessor system is shown in Example 6-1.
Example 6-1
In the case of two coprocessors that have handshaking signals CHSD1, and CHSE1,
and CHSD2, and CHSE2, respectively, the following connections are made:
ARM9E-S
CHSD[1]<= CHSD1[1] ANDCHSD2[1]
CHSD[0]<= CHSD1[0] OR CHSD2[0]
CHSE[1]<= CHSE1[1] ANDCHSE2[1]
CHSE[0]<= CHSE1[0] OR CHSE2[0]
Signal
PASS, LATECANCEL
CHSD, CHSE
data.
Note
Copyright © 2000 ARM Limited. All rights reserved.
MRC
and
CP1
STC
operations. This is to allow the connection of the ETM module
Connection
Connect these signals to all coprocessors present in the system.
Combine the individual bit 1 of CHSD, and CHSE by ANDing.
Combine the individual bit 0 of CHSD, and CHSE by ORing.
Connect the CHSD, and CHSE inputs to the ARM9E-S.
CP2
Table 6-2 Handshake signal connections
ARM DDI 0165B
MRC
and
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