R40008 Atmel Corporation, R40008 Datasheet - Page 28
![no-image](/images/manufacturer_photos/0/0/79/atmel_corporation_sml.jpg)
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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Introduction
1-6
Thumb therefore offers a long branch range, powerful arithmetic operations, and a large
address space.
Thumb code is typically 65% of the size of ARM code, and provides 160% of the
performance of ARM code when running from a 16-bit memory system. Thumb,
therefore, makes the ARM7TDMI core ideally suited to embedded applications with
restricted memory bandwidth, where code density and footprint is important.
The availability of both 16-bit Thumb and 32-bit ARM instruction sets gives designers
the flexibility to emphasize performance or code size on a subroutine level, according
to the requirements of their applications. For example, critical loops for applications
such as fast interrupts and DSP algorithms can be coded using the full ARM instruction
set then linked with Thumb code.
Copyright © 1994-2001. All rights reserved.
ARM DDI 0029G
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