M55800A Atmel Corporation, M55800A Datasheet - Page 179
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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7.4
ARM DDI 0029G
Bidirectional data write cycle
Figure 7-3 shows the ARM7TDMI processor bidirectional data write cycle timing. The
timing parameters used in Figure 7-3 are listed in Table 7-3.
In Figure 7-3 DBE is HIGH and nENIN is LOW during the cycle shown.
nENOUT
D[31:0]
MCLK
Note
Copyright © 1994-2001. All rights reserved.
T
nen
Symbol
T
T
T
T
doh
dout
nen
nenh
Table 7-3 Bidirectional data write cycle timing parameters
T
dout
Parameter
DOUT[31:0] hold from MCLKf
MCLKf to D[31:0] valid
MCLKf to nENOUT valid
nENOUT hold time from MCLKf
Figure 7-3 Bidirectional data write cycle timing
T
T
nenh
doh
AC and DC Parameters
Parameter type
Minimum
Minimum
Maximum
Maximum
7-7
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