SAM7SE256 Atmel Corporation, SAM7SE256 Datasheet - Page 126
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SAM7SE256
Manufacturer Part Number
SAM7SE256
Description
Manufacturer
Atmel Corporation
Specifications of SAM7SE256
Flash (kbytes)
256 Kbytes
Pin Count
144
Max. Operating Frequency
48 MHz
Cpu
ARM7TDMI
Hardware Qtouch Acquisition
No
Max I/o Pins
88
Ext Interrupts
88
Usb Transceiver
1
Usb Speed
Full Speed
Usb Interface
Device
Spi
1
Twi (i2c)
1
Uart
3
Ssc
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
384
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)
3.0 to 3.6
Fpu
No
Mpu / Mmu
Yes / No
Timers
3
Output Compare Channels
3
Input Capture Channels
3
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
No
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Debug Interface
5.2
5.2.1
5.2.2
5-4
Debug systems
Debug host
Protocol converter
A debug system typically has three parts:
•
•
•
The debug host and the protocol converter are system-dependent.
The debug host is a computer that is running a software debugger such as the ARM
Debugger for Windows (ADW). The debug host allows you to issue high-level
commands such as setting breakpoints or examining the contents of memory.
The protocol converter communicates with the high-level commands issued by the
debug host and the low-level commands of the ARM7TDMI processor JTAG interface.
Typically it interfaces to the host through an interface such as an enhanced parallel port.
Figure 5-1 shows a typical debug system using an ARM core.
Debug host
Debug host on page 5-4
Protocol converter on page 5-4
Debug target on page 5-5.
Copyright © 1994-2001. All rights reserved.
converter
Protocol
Host computer running
ARM or third party
toolkit
Debug target
For example Multi-ICE
Figure 5-1 Typical debug system
Development system
containing an
ARM7TDMI processor
ARM DDI 0029G
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