M42800A Atmel Corporation, M42800A Datasheet - Page 197
M42800A
Manufacturer Part Number
M42800A
Description
Manufacturer
Atmel Corporation
Datasheets
1.M40800.pdf
(284 pages)
2.M40800.pdf
(153 pages)
3.M42800A.pdf
(224 pages)
4.M42800A.pdf
(27 pages)
Specifications of M42800A
Flash (kbytes)
0 Kbytes
Pin Count
144
Max. Operating Frequency
33 MHz
Cpu
ARM7TDMI
Hardware Qtouch Acquisition
No
Max I/o Pins
54
Ext Interrupts
54
Usb Speed
No
Usb Interface
No
Spi
2
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
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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7.21
ARM DDI 0029G
Output enable and disable times
TCK
A[ ]
D[ ]
Figure 7-20 shows the output enable and disable times due to a HIGHZ TAP instruction.
Figure 7-21 shows the output enable and disable times due to data scanning.The timing
parameters used in Figure 7-20 and Figure 7-21 are listed in Table 7-20.
Figure 7-20 shows the T
when the HIGHZ TAP instruction is loaded into the instruction register.
Figure 7-21 shows the T
when data scanning, due to different logic levels being scanned through the scan cells
for ABE and DBE.
Figure 7-20 Output enable and disable times due to HIGHZ TAP instruction
Note
Note
Copyright © 1994-2001. All rights reserved.
Figure 7-21 Output enable and disable times due to data scanning
TCK
D[ ]
A[ ]
bse
bse
, output enable time, parameter and T
, output enable time, parameter and T
Table 7-20 Output enable and disable timing parameters
T
bsz
T
bsz
Symbol
T
T
bse
bsz
Parameter
Output enable time
Output disable time
bsz
bsz
AC and DC Parameters
, output disable time,
, output disable time
Parameter type
Maximum
Maximum
T
bse
T
bse
7-25
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