AM261...ZCZQ1 datasheet(116/218 Pages) TI2

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6.11.5.2 Enhanced Capture (eCAP)

Note

The device has multiple ECAP modules. The generic CAP_ prefix is used to represent the signal

names for all ECAP instances.

For more information, see Enhanced Capture (ECAP) Module section in the device TRM.

6.11.5.2.1 ECAP Timing Conditions

PARAMETER

MIN

MAX

UNIT

INPUT CONDITIONS

SRI

Input Slew Rate

V/ns

OUTPUT CONDITIONS

Output Load Capacitance

6.11.5.2.2 ECAP Timing Requirements

NO.

PARAMETER

DESCRIPTION

MIN

MAX

UNIT

CAP1

tw(CAP)

Capture input pulse width

Asynchronous

(2 + X(2)) × P(1)

Synchronous

(3 + X(2)) × P(1)

With input qualifier

(2 + X(2)) × P(1) + U(3)

(1)

P = sysclk period in ns.

(2)

X = value of ECCTL0_TYPE3[QUALPRD] setting.

(3)

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

CAP

CAP1

EPERIPHERALS_TIMNG_01

Figure 6-16. ECAP Timings Requirements

6.11.5.2.3 ECAP Switching Characteristics

(1)

NO.

PARAMETER

DESCRIPTION

MIN

MAX

UNIT

CAP2

tw(APWM)

Pulse duration, APWMx output high/low

(1)

Some ECAP signals are pinmuxed with I2C0 SDA and SCL pins. These pins use an alternate open drain voltage buffer and may not

meet the specified parameters. Values are pending additional post-silicon validation.

APWM

CAP2

EPERIPHERALS_TIMNG_02

Figure 6-17. ECAP Switching Characteristics

AM2612, AM2611, AM2611-Q1, AM2612-Q1

SPRSPA7C – SEPTEMBER 2024 – REVISED JULY 2025

www.ti.com

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