SAM7L128 Atmel Corporation, SAM7L128 Datasheet - Page 197
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SAM7L128
Manufacturer Part Number
SAM7L128
Description
Manufacturer
Atmel Corporation
Specifications of SAM7L128
Flash (kbytes)
128 Kbytes
Pin Count
144
Max. Operating Frequency
36 MHz
Cpu
ARM7TDMI
Hardware Qtouch Acquisition
No
Max I/o Pins
80
Ext Interrupts
80
Usb Speed
No
Usb Interface
No
Spi
1
Twi (i2c)
1
Uart
3
Segment Lcd
40
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
4
Adc Resolution (bits)
10
Adc Speed (ksps)
460
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
6
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.8/3.3
Operating Voltage (vcc)
1.8 to 3.6
Fpu
No
Mpu / Mmu
no / no
Timers
3
Output Compare Channels
3
Input Capture Channels
3
Pwm Channels
4
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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