R40008 Atmel Corporation, R40008 Datasheet - Page 127
R40008
Manufacturer Part Number
R40008
Description
Manufacturer
Atmel Corporation
Datasheets
1.M40800.pdf
(284 pages)
2.M40800.pdf
(153 pages)
3.R40008.pdf
(19 pages)
4.R40008.pdf
(20 pages)
Specifications of R40008
Flash (kbytes)
0 Kbytes
Pin Count
100
Max. Operating Frequency
75 MHz
Cpu
ARM7TDMI
Hardware Qtouch Acquisition
No
Max I/o Pins
32
Ext Interrupts
32
Usb Speed
No
Usb Interface
No
Uart
2
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
256
Self Program Memory
NO
External Bus Interface
1
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
3.3
Fpu
No
Mpu / Mmu
no / no
Timers
3
Output Compare Channels
3
Input Capture Channels
3
32khz Rtc
No
Calibrated Rc Oscillator
No
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5.2.3
ARM DDI 0029G
Debug target
The ARM7TDMI processor has hardware extensions that ease debugging at the lowest
level. The debug extensions:
•
•
•
•
The major blocks of the debug target are shown in Figure 5-2.
The ARM CPU core
The EmbeddedICE Logic
The TAP controller
allow you to halt program execution
examine and modify the core internal state of the core
view and modify the state of the memory system
resume program execution.
Copyright © 1994-2001. All rights reserved.
EmbeddedICE
This has hardware support for debug.
This is a set of registers and comparators used to generate debug
exceptions such as breakpoints. This unit is described in About
EmbeddedICE Logic on page 5-13.
This controls the action of the scan chains using a JTAG serial interface.
Scan chain 2
Logic
TAP controller
Scan chain 0
Scan chain 1
Figure 5-2 ARM7TDMI block diagram
Main processor
logic
Debug Interface
5-5
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