M40800 Atmel Corporation, M40800 Datasheet - Page 26
M40800
Manufacturer Part Number
M40800
Description
Manufacturer
Atmel Corporation
Datasheets
1.M40800.pdf
(284 pages)
2.M40800.pdf
(21 pages)
3.M40800.pdf
(18 pages)
4.M40800.pdf
(153 pages)
Specifications of M40800
Flash (kbytes)
0 Kbytes
Pin Count
100
Max. Operating Frequency
40 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)
8
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
1.8/3.3
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
1.1.3
1.1.4
1-4
Memory interface
EmbeddedICE Logic
The ARM7TDMI processor memory interface has been designed to allow performance
potential to be realized, while minimizing the use of memory. Speed-critical control
signals are pipelined to allow system control functions to be implemented in standard
low-power logic. These control signals facilitate the exploitation of the fast-burst access
modes supported by many on-chip and off-chip memory technologies.
The ARM7TDMI core has four basic types of memory cycle:
•
•
•
•
EmbeddedICE Logic is the additional hardware provided by debuggable ARM
processors to aid debugging. It allows software tools to debug code running on a target
processor. The EmbeddedICE Logic is controlled through the Joint Test Action Group
(JTAG) test access port, using the EmbeddedICE interface. See Chapter 5 Debug
Interface and Appendix B Debug in Depth for more information.
idle cycle
nonsequential cycle
sequential cycle
coprocessor register transfer cycle.
Copyright © 1994-2001. All rights reserved.
ARM DDI 0029G
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