R40008 Atmel Corporation, R40008 Datasheet - Page 138
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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Debug Interface
5.8
5.8.1
5-16
Debug Communications Channel
DCC registers
The ARM7TDMI processor EmbeddedICE Logic contains a DCC to pass information
between the target and the host debugger. This is implemented as coprocessor 14
(CP14).
The DCC comprises:
•
•
•
These registers are located in fixed locations in the EmbeddedICE Logic register map,
as shown in Figure B-7 on page B-41, and are accessed from the processor using MCR
and MRC instructions to coprocessor 14.
The following sections describe:
•
•
The DCC control register is read-only. It controls synchronized handshaking between
the processor and the debugger. The control register format is shown in Figure 5-6.
a 32-bit communications data read register
a 32-bit wide communications data write register
a 6-bit communications control register for synchronized handshaking between
the processor and the asynchronous debugger.
DCC registers on page 5-16
Communications through the DCC on page 5-17.
Copyright © 1994-2001. All rights reserved.
EmbeddedICE
31 30 29 28 27
0
version
0
0
1
•
Reserved
Figure 5-6 DCC control register format
2
• W R
Control
1
bits
0
DCC data read register
DCC data write register
ARM DDI 0029G
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