TMS570LS0232PZ datasheet(94/109 Pages) TI1

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TMS570LS0232

SPNS242A – OCTOBER 2014 – REVISED JUNE 2015

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7.8.4

Enhanced Quadrature Encoder Pulse (eQEPx) Timing

Table 7-18. eQEPx Timing Requirements

PARAMETER

TEST CONDITIONS

MIN

MAX

UNIT

Synchronous

2 tc(VCLK)

cycles

tw(QEPP)

QEP input period

Synchronous, with input filter

2 tc(VCLK) + filter width

cycles

Synchronous

2 tc(VCLK)

cycles

tw(INDEXH) QEP Index Input High Time

Synchronous, with input filter

2 tc(VCLK) + filter width

cycles

Synchronous

2 tc(VCLK)

cycles

tw(INDEXL) QEP Index Input Low Time

Synchronous, with input filter

2 tc(VCLK) + filter width

cycles

Synchronous

2 tc(VCLK)

cycles

tw(STROBH

QEP Strobe Input High Time

)

Synchronous, with input filter

2 tc(VCLK) + filter width

cycles

Synchronous

2 tc(VCLK)

cycles

tw(STROBL

QEP Strobe Input Low Time

)

Synchronous, with input filter

2 tc(VCLK) + filter width

cycles

Table 7-19. eQEPx Switching Characteristics

PARAMETER

MIN

MAX

UNIT

td(CNTR)xin

Delay time, external clock to counter increment

4 tc(VCLK)

cycles

td(PCS-OUT)QEP

Delay time, QEP input edge to position compare sync output

6 tc(VCLK)

cycles

Peripheral Information and Electrical Specifications

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