Texas Instruments Hercules TMS570LS04x/03x LaunchPad Evaluation Kit LAUNCHXL-TMS57004 LAUNCHXL-TMS57004 数据表
产品代码
LAUNCHXL-TMS57004
SPNS186A – OCTOBER 2012 – REVISED SEPTEMBER 2013
4.7
Glitch Filters
A glitch filter is present on the following signals.
Table 4-16. Glitch Filter Timing Specifications
Pin
Parameter
MIN
MAX
Unit
nPORRST
t
f(nPORRST)
475
2000
ns
Filter time nPORRST pin;
pulses less than MIN will be filtered out, pulses greater than
MAX will generate a reset
MAX will generate a reset
(1)
nRST
t
f(nRST)
475
2000
ns
Filter time nRST pin;
pulses less than MIN will be filtered out, pulses greater than
MAX will generate a reset
MAX will generate a reset
TEST
t
f(TEST)
475
2000
ns
Filter time TEST pin;
pulses less than MIN will be filtered out, pulses greater than
MAX will pass through
MAX will pass through
(1)
The glitch filter design on the nPORRST signal is designed such that no size pulse will reset any part of the microcontroller (flash pump,
I/O pins, etc.) without also generating a valid reset signal to the CPU.
I/O pins, etc.) without also generating a valid reset signal to the CPU.
40
System Information and Electrical Specifications
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