M42800A Atmel Corporation, M42800A Datasheet - Page 197

• Manufacturer Part Number: M42800A
• Manufacturer: Atmel Corporation

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

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