M55800A Atmel Corporation, M55800A Datasheet - Page 116
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
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Coprocessor Interface
4.5
4.5.1
4-12
Connecting coprocessors
Connecting a single coprocessor
A coprocessor in an ARM7TDMI processor system must have 32-bit connections to:
•
•
•
The coprocessor can optionally have connections to:
•
•
This section describes:
•
•
An example of how to connect:
•
•
the instruction stream from memory
data written by the core, MCR
data read by the core, MRC.
data written from memory, LDC
data read to memory, STC.
Connecting a single coprocessor on page 4-12
Connecting multiple coprocessors on page 4-13.
a coprocessor into an ARM7TDMI processor system if you are using a
bidirectional bus is shown in Figure 4-5
a coprocessor into an ARM7TDMI processor system if you are using a
unidirectional bus is shown in Figure 4-6 on page 4-13.
Copyright © 1994-2001. All rights reserved.
Figure 4-5 Coprocessor connections with bidirectional bus
ARM core
Coprocessor
D[31:0]
ARM DDI 0029G
CPDRIVE
Memory
system
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