SPRSP69D July 2023 – August 2025 TMS320F28P650DH , TMS320F28P650DK , TMS320F28P650SH , TMS320F28P650SK , TMS320F28P659DH-Q1 , TMS320F28P659DK-Q1 , TMS320F28P659SH-Q1
PRODUCTION DATA
The following section summarizes the sampling window width for input signals for various input qualifier configurations.
Sampling frequency denotes how often a signal is sampled with respect to SYSCLK.
In the previous equations, SYSCLK cycle indicates the time period of SYSCLK.
Sampling period = SYSCLK cycle, if QUALPRD = 0
In a given sampling window, either 3 or 6 samples of the input signal are taken to determine the validity of the signal. This is determined by the value written to GPxQSELn register.
Case 1:
Qualification using 3 samples
Case 2:
Qualification using 6 samples
Figure 6-35 General-Purpose Input Timing