M55800A Atmel Corporation, M55800A Datasheet - Page 137
M55800A
Manufacturer Part Number
M55800A
Description
Manufacturer
Atmel Corporation
Datasheets
1.M40800.pdf
(284 pages)
2.M40800.pdf
(153 pages)
3.M55800A.pdf
(29 pages)
4.M55800A.pdf
(256 pages)
5.M55800A.pdf
(28 pages)
Specifications of M55800A
Flash (kbytes)
0 Kbytes
Pin Count
176
Max. Operating Frequency
33 MHz
Cpu
ARM7TDMI
Hardware Qtouch Acquisition
No
Max I/o Pins
58
Ext Interrupts
58
Usb Speed
No
Usb Interface
No
Spi
1
Uart
3
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
72
Resistive Touch Screen
No
Dac Channels
1
Dac Resolution (bits)
10
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
3.3/5.0
Fpu
No
Mpu / Mmu
no / no
Timers
6
Output Compare Channels
6
Input Capture Channels
6
32khz Rtc
Yes
Calibrated Rc Oscillator
No
- M40800 PDF datasheet
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- M55800A PDF datasheet #3
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5.7
ARM DDI 0029G
Disabling EmbeddedICE
The EmbeddedICE Logic is disabled by setting DBGEN LOW.
Hard-wiring the DBGEN input LOW permanently disables the EmbeddedICE Logic.
However, you must not rely upon this for system security.
When DBGEN is LOW:
•
•
•
•
BREAKPT and DBGRQ are forced LOW to the core
DBGACK is forced LOW from the ARM7TDMI core
interrupts pass through to the processor uninhibited by the debug logic
EmbeddedICE Logic is put into a low-power mode.
Caution
Copyright © 1994-2001. All rights reserved.
Debug Interface
5-15
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