AM6546 datasheet(230/284 Pages) TI

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7.9.5.20 PCIE

The PCI-Express Subsystem is compliant with the PCI Express Base Specification, revision 3.1. Refer to the

specification for timing details.

For more details about features and additional description information on the device Peripheral Component

Interconnect Express, see the corresponding sections within Section 6.3, Signal Descriptions and Section 8,

Detailed Description.

7.9.5.21 PRU_ICSSG

The device has integrated three identical PRU_ICSSG subsystems (PRU_ICSSG0, PRU_ICSSG1 and

PRU_ICSSG2). The programmable nature of the PRU cores, along with their access to pins, events and

all device resources, provides flexibility in implementing fast real-time responses, specialized data handling

operations, custom peripheral interfaces, and in offloading tasks from the other processor cores of the device.

For more details about features and additional description information on the device Programmable Real-Time

Unit Subsystem and Industrial Communication Subsystem - Gigabit, see the corresponding sections within

Section 6.3, Signal Descriptions and Section 8, Detailed Description.

7.9.5.21.1 Programmable Real-Time Unit (PRU_ICSSG PRU)

Note

The PRU_ICSSG PRU signals have different functionality depending on the mode of operation. The

signal naming in this section matches the naming used in the PRU Module Interface section in the

device TRM.

Table 7-70 presents the PRU timing conditions.

Table 7-70. PRU_ICSSG PRU Timing Conditions

PARAMETER

MIN

MAX

UNIT

INPUT CONDITIONS

SRI

Input slew rate

1.5

V/ns

OUTPUT CONDITIONS

Output load capacitance

7.9.5.21.1.1 PRU_ICSSG PRU Direct Input/Output Mode Electrical Data and Timing

7.9.5.21.1.1.1 PRU_ICSSG PRU Switching Characteristics - Direct Output Mode

NO.

PARAMETER

MIN

MAX

UNIT

PRDO1

tsk(GPO-GPO)

Skew, GPO to GPO

GPO[n:0]

PRDO1

SPRS91x_TIMING_PRU_02

Figure 7-95. PRU_ICSSG PRU Direct Output Timing

n in GPO[n:0] = 19.

AM6548, AM6528, AM6546, AM6526

SPRSP52B – DECEMBER 2019 – REVISED JUNE 2021

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