RM46L852
www.ti.com
SPNS185 –SEPTEMBER 2012
4.8 Glitch Filters
A glitch filter is present on the following signals.
Table 4-20. Glitch Filter Timing Specifications
Pin Parameter MIN MAX Unit
nPORRST t
f(nPORRST)
500 2000 ns
Filter time nPORRST pin;
pulses less than MIN will be filtered out, pulses greater than
MAX will generate a reset
(1)
nRST t
f(nRST)
500 2000 ns
Filter time nRST pin;
pulses less than MIN will be filtered out, pulses greater than
MAX will generate a reset
TEST t
f(TEST)
500 2000 ns
Filter time TEST pin;
pulses less than MIN will be filtered out, pulses greater than
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.
Copyright © 2012, Texas Instruments Incorporated System Information and Electrical Specifications 73
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