SAM9XE256 Atmel Corporation, SAM9XE256 Datasheet - Page 194
SAM9XE256
Manufacturer Part Number
SAM9XE256
Description
Manufacturer
Atmel Corporation
Datasheets
1.SAM9260.pdf
(290 pages)
2.SAM9261.pdf
(248 pages)
3.SAM9XE128.pdf
(860 pages)
4.SAM9XE128.pdf
(48 pages)
Specifications of SAM9XE256
Flash (kbytes)
256 Kbytes
Pin Count
217
Max. Operating Frequency
180 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)
2
Uart
6
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)
32
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)
1.65 to 1.95
Fpu
No
Mpu / Mmu
No / Yes
Timers
6
Output Compare Channels
6
Input Capture Channels
6
32khz Rtc
Yes
Calibrated Rc Oscillator
No
- SAM9260 PDF datasheet
- SAM9261 PDF datasheet #2
- SAM9XE128 PDF datasheet #3
- SAM9XE128 PDF datasheet #4
- Current page: 194 of 248
- Download datasheet (2Mb)
Signal Descriptions
A-6
Name
CHSEX[1:0]
Coprocessor
handshake execute
nCPINSTRVALID
Coprocessor valid
instruction
nCPMREQ
Not coprocessor
instruction request
nCPTRANS
Not coprocessor
memory translate
Copyright © 2001-2003 ARM Limited. All rights reserved.
Direction
Input
Output
Output
Output
Table A-2 Coprocessor interface signals (continued)
Description
The handshake signals from the Execute stage of the
coprocessors pipeline follower. Indicates ABSENT
(10), WAIT (00), GO (01), or LAST (11). If no
external coprocessors are attached these must be tied
to b10 (ABSENT response).
Valid instruction indicator for CPINSTR (replaces
CPTBIT).
If this signal is LOW on the rising edge of CLK and
CPCLKEN is HIGH, the instruction on CPINSTR
must enter the coprocessor pipeline.
When LOW the coprocessor interface is in a
nonprivileged state. When HIGH the coprocessor
interface is in a privileged state.
ARM DDI0198D
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