R40008 Atmel Corporation, R40008 Datasheet - Page 86
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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Memory Interface
3-16
If ALE is to be used to change address timing, then you must tie APE HIGH. Similarly,
if APE is to be used, ALE must be tied HIGH.
You can obtain better system performance when the address pipeline is enabled with
APE HIGH. This allows longer time for address decoding.
Note
Copyright © 1994-2001. All rights reserved.
nMREQ
D[31:0]
A[31:0]
MCLK
SEQ
APE
ALE
Figure 3-10 SRAM compatible address timing
ARM DDI 0029G
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