PM5347 datasheet(104/302 Pages) PMC

104 / 302 page

PM5347 S/UNI-PLUS

DATA SHEET

PMC-941033

ISSUE 6

SATURN USER NETWORK INTERFACE PLUS

PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE

Bit

Type

Function

Default

Bit 7

Unused

Bit 6

Unused

Bit 5

Unused

Bit 4

Unused

Bit 3

TROOLV

Bit 2

TROOLI

Bit 1

R/W

TROOLE

Bit 0

R/W

TREFSEL

This register controls the clock synthesis and reports the state of the transmit

phase locked loop.

TREFSEL:

The transmit reference select (TREFSEL) bit determines the expected

frequency of TRCLK+/- to synthesize the line clock frequency. If TREFSEL is

a logic zero, the reference frequency must be 19.44 MHz. If TREFSEL is a

logic one, the reference frequency must be 6.48 MHz. TREFSEL only has

effect if the TBYP input is low.

TROOLE:

The TROOLE bit is an interrupt enable for the transmit reference out of lock

status. When TROOLE is a logic one, an interrupt is generated when the

TROOLV bit changes state.

TROOLI:

The TROOLI bit is the transmit reference out of lock interrupt status bit.

TROOLI is a logic one when the TROOLV bit changes state. TROOLI is

cleared when this register is read.

TROOLV:

The transmit reference out of lock status indicates the clock synthesis phase

locked loop is unable to lock to the reference. TROOLV is a logic one if the

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