KSZ9567R_V01 datasheet(123/233 Pages) MICROCHIP

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DS00002329E-page 123

KSZ9567R

5.1.6.20

Trigger Output Unit Control 1 Register

This register is indexed by the Trigger Unit Index Pointer value in bits [1:0] of the Global PTP Unit Index Register.

Address:

0x0538 - 0x053B

Size:

32 bits

Bits

Description

Type

Default

Enable Event Trigger Output Unit in Cascade Mode

(CASCADE_MODE_ENB)

1 = Enables the event trigger output unit in cascade mode

0 = Disables the event trigger output unit in cascade mode

R/W

Cascade Mode Event Trigger Output Unit Tail Unit Indicator

(CASCADE_MODE_TAIL)

1 = This event trigger output unit is the last unit of the chain in cascade mode

0 = This event trigger output unit is not the last unit of the chain in cascade

mode. Note: when this bit it cleared to “0” for all units in cascade mode, the

iteration count is ignored and becomes an infinite number. To stop the infinite

loop, set the respective TRIG_SW_RESET bit in the Timestamp Control and

Status Register.

R/W

29:28

RESERVED

00b

27:26

Cascade Mode Upstream Trigger Done Unit Select

This field selects one of the 3 upstream trigger done input units in cascade

mode. For example, if units 1, 2, and 3 (tail unit) are set up in cascade mode,

then Unit 1 is set to 0x3, Unit 2 is set to 0x1, and Unit 3 is set to 0x2.

R/W

00b

Trigger Now (TRIGGER_NOW)

1 = Immediately trigger even output if trigger target time is less than the sys-

tem clock time

0 = Wait for trigger target time to trigger event output

R/W

Trigger Notify (TRIGGER_NOTIFY)

1 = Enables reporting both TRIG_DONE and TRIG_ERR status as well as

interrupt to host if interrupt enable bit is set.

0 = Disables reporting of both TRIG_DONE and TRIG_ERR status.

R/W

Trigger Edge (TRIGGER_EDGE)

1 = Trigger output on negative edge of clock

0 = Trigger output on positive edge of clock

R/W

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