Datasheet

TMS570LS0432
TMS570LS0332
www.ti.com SPNS186A –OCTOBER 2012–REVISED SEPTEMBER 2013
5.8.4 Enhanced Quadrature Encoder Pulse (eQEPx) Timing
Table 5-18. eQEPx Timing Requirements
PARAMETER TEST CONDITIONS MIN MAX UNIT
t
w(QEPP)
QEP input period Synchronous 2 t
c(VCLK)
cycles
Synchronous, with input 2 t
c(VCLK)
+ filter width cycles
filter
t
w(INDEXH)
QEP Index Input High Time Synchronous 2 t
c(VCLK)
cycles
Synchronous, with input 2 t
c(VCLK)
+ filter width cycles
filter
t
w(INDEXL)
QEP Index Input Low Time Synchronous 2 t
c(VCLK)
cycles
Synchronous, with input 2 t
c(VCLK)
+ filter width cycles
filter
t
w(STROBH)
QEP Strobe Input High Time Synchronous 2 t
c(VCLK)
cycles
Synchronous, with input 2 t
c(VCLK)
+ filter width cycles
filter
t
w(STROBL)
QEP Strobe Input Low Time Synchronous 2 t
c(VCLK)
cycles
Synchronous, with input 2 t
c(VCLK)
+ filter width cycles
filter
Table 5-19. eQEPx Switching Characteristics
PARAMETER MIN MAX UNIT
t
d(CNTR)xin
Delay time, external clock to counter increment 4 t
c(VCLK)
cycles
t
d(PCS-OUT)QEP
Delay time, QEP input edge to position compare sync output 6 t
c(VCLK)
cycles
Copyright © 2012–2013, Texas Instruments Incorporated Peripheral Information and Electrical Specifications 93
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