SAM9XE128 Atmel Corporation, SAM9XE128 Datasheet - Page 158
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SAM9XE128
Manufacturer Part Number
SAM9XE128
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 SAM9XE128
Flash (kbytes)
128 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)
16
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: 158 of 290
- Download datasheet (5Mb)
Debug Interface and EmbeddedICE-RT
7-20
Receiving a message from the debugger
Transferring a message from the debugger to the processor is similar to sending a
message to the debugger. In this case, the debugger polls the R bit of the debug comms
control register.
•
•
When the comms data read register is free, data is written there using the JTAG
interface. The action of this write sets the R bit in the debug comms control register.
The processor polls the debug comms control register. If the R bit is set, there is data
that can be read using an MRC instruction to coprocessor 14. The action of this load
clears the R bit in the debug comms control register. When the debugger polls this
register and sees that the R bit is clear, the data has been taken, and the process can now
be repeated.
If the R bit is LOW, the comms data read register is free, and data can be placed
there for the processor to read.
If the R bit is set, previously deposited data has not yet been collected, so the
debugger must wait.
Copyright © 2000 ARM Limited. All rights reserved.
ARM DDI 0165B
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