KSZ9567R_V01 datasheet(121/233 Pages) MICROCHIP

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DS00002329E-page 121

KSZ9567R

5.1.6.17

Timestamp Control and Status Register

Portions of this register are indexed by the Trigger Unit Index Pointer (bits [1:0]) and Timestamp Unit Index Pointer (bit

8) values in the Global PTP Unit Index Register.

1:0

Timestamp Unit Interrupt Status (GPIO input timestamp only)

(Bit 1 = Timestamp Unit 1, Bit 0 = Timestamp Unit 0)

These two bits provide the interrupt status for the two Timestamp Output

Units for the GPIO. These interrupts are enabled by the Timestamp Unit

Interrupt Enable bit in the Timestamp Control and Status Register. This is

done separately for each TSU. Refer to the registers beginning at the

Timestamp Status and Control Register for Timestamp interrupt details.

For the interrupt status for the port-based timestamping of PTP egress

frames, refer to the Port Interrupt Status Register and Port PTP Timestamp

Interrupt Status Register.

1 = Interrupt detected

0 = No interrupt

R/WC

00b

Address:

0x052C - 0x052F

Size:

32 bits

Bits

Description

Type

Default

31:9

RESERVED

0x000000

GPIO Output Source Select (GPIO_OUT_SEL)

1 = The output is a combinatorial result

0 = The output is from flopped output

R/W

GPIO Inputs Monitor (GPIO_IN)

This field reflects the current value seen on the GPIO input.

R-

GPIO Output Enable (GPIO_OEN)

1 = Enables the GPIO pin as a timestamp input

0 = Enables the GPIO pin as a trigger output (default)

R/W

Timestamp Unit Interrupt Enable (TS_INT_ENB)

The timestamp unit interrupt status bit is found in the GPIO Status Monitor 1

0 = Interrupt disabled

1 = Interrupt enabled

Note:

This field is indexed by the Timestamp Unit Index Pointer (bit 8)

value in the Global PTP Unit Index Register.

R/W

Event Trigger Output Unit Active (TRIGGER_ACTIVE)

1 = The event trigger output unit is enabled and active without error

0 = The event trigger output unit is finished and inactive

Note:

This field is indexed by the Trigger Unit Index Pointer (bits 1:0)

value in the Global PTP Unit Index Register.

R0b

Event Trigger Output Unit Enable (TRIGGER_EN)

1 = Enables the selected event trigger output unit. Self-clearing when trigger

output is generated. In cascade mode, only enable the head of the trigger unit.

0 = The event trigger out unit is disabled

Note:

This field is indexed by the Trigger Unit Index Pointer (bits 1:0)

value in the Global PTP Unit Index Register.

R/W

Bits

Description

Type

Default

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