DRA821U2...ALM datasheet(215/252 Pages) TI

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Table 7-78. OSPI DLL Delay Mapping for Timing Modes

MODE

OSPI_PHY_CONFIGURATION_REG

BIT FIELD

DELAY VALUE

TRANSMIT

1.8 V

PHY_CONFIG_TX_DLL_DELAY_FLD

0x54

3.3 V

PHY_CONFIG_TX_DLL_DELAY_FLD

0x55

RECEIVE

1.8 V, DQS

PHY_CONFIG_RX_DLL_DELAY_FLD

0x2D

3.3 V, DQS

PHY_CONFIG_RX_DLL_DELAY_FLD

0x29

All other modes

PHY_CONFIG_RX_DLL_DELAY_FLD

0x0

For more information, see Octal Serial Peripheral Interface (OSPI) section in Peripherals chapter in the device

TRM.

7.9.5.19 PCIE

The PCI-Express Subsystem is compliant with the PCIe® Base Specification, Revision 4.0. 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.

For more information, see Peripheral Component Interconnect Express (PCIe) Subsystem section in Peripherals

chapter in the device TRM.

7.9.5.20 Timers

For more details about features and additional description information on the device Timers, see the

corresponding sections within Section 6.3, Signal Descriptions and Section 8, Detailed Description.

Table 7-79 represents Timers timing conditions.

Table 7-79. Timers Timing Conditions

PARAMETER

DESCRIPTION

MODE

MIN

MAX

UNIT

Input Conditions

tSR

Input slew rate

CAPTURE

0.5

V/ns

Output Conditions

CLOAD

Output load capacitance

PWM

Section 7.9.5.20.1, Section 7.9.5.20.2 and Figure 7-110 present timings and switching characteristics of the

Timers.

7.9.5.20.1 Timing Requirements for Timers

NO.

PARAMETER

DESCRIPTION

MODE

MIN

MAX

UNIT

tw(TINPH)

Pulse duration, high

CAPTURE

2.5 +

(1)

tw(TINPL)

Pulse duration, low

CAPTURE

2.5 +

(1)

P = functional clock period in ns.

7.9.5.20.2 Switching Characteristics for Timers

NO.

PARAMETER

DESCRIPTION

MODE

MIN

MAX

UNIT

tw(TOUTH)

Pulse duration, high

PWM

-2.5 +

(1)

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DRA821U-Q1

SPRSP57D – APRIL 2020 – REVISED DECEMBER 2022

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