AM263P4 datasheet(99/154 Pages) TI

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6.11.5.4 Enhanced Quadrature Encoder Pulse (eQEP)

Note

The device has multiple eQEP modules. The generic QEP_ prefix is used to represent the signal

names for all eQEP instances.

For more information, see Enhanced Quadrature Encoder Pulse (eQEP) Module section in the device TRM.

6.11.5.4.1 EQEP Timing Conditions

PARAMETER

MIN

MAX

UNIT

INPUT CONDITIONS

SRI

Input Slew Rate

V/ns

OUTPUT CONDITIONS

Output Load Capacitance

6.11.5.4.2 EQEP Timing Requirements

NO.

PARAMETER

DESCRIPTION

MIN

MAX

UNIT

QEP1

tw(QEPP)

QEP input period

Synchronous(3)

3P(1)

With input qualifier

2 × (P(1) + U(2))

QEP2

tw(INDEXH)

QEP Index Input High time

Synchronous(3)

2 + 3P(1)

With input qualifier

2P(1) + U(2)

QEP3

tw(INDEXL)

QEP Index Input Low time

Synchronous(3)

3P(1)

With input qualifier

2P(1) + U(2)

QEP4

tw(STROBH)

QEP Strobe High time

Synchronous(3)

3P(1)

With input qualifier

2P(1) + U(2)

QEP5

tw(STROBL)

QEP Strobe Input Low time

Synchronous(3)

3P(1)

With input qualifier

2P(1) + U(2)

(1)

P = sysclk period in ns.

(2)

U = the input qualifier sampling window. See GPIO Electrical Data and Timing section for details on Input Qualifier Mode.

(3)

The GPIO GPxQSELn Asynchronous mode should not be used for eQEP module input pins.

QEP_S

QEP4

EPERIPHERALS_TIMNG_03

QEP_I

QEP2

QEP_A/B

QEP1

QEP3

QEP5

Figure 6-20. EQEP Timing Requirements

TI Information - Selective Disclosure

www.ti.com

AM263P4, AM263P2, AM263P1, AM263P4-Q1, AM263P2-Q1, AM263P1-Q1

SPRSP81 – OCTOBER 2023

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