PM7375-SC datasheet(182/430 Pages) PMC

182 / 430 page

PM7375 LASAR-155

DATA SHEET

PMC-931127

ISSUE 6

LOCAL ATM SAR & PHYSICAL LAYER

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

166

10.1.65

Bit

Type

Function

Default

Bit 15

Unused

Bit 14

Unused

Bit 13

Unused

Bit 12

Unused

Bit 11

Unused

Bit 10

Unused

Bit 9

Unused

Bit 8

Unused

Bit 7

R/W

Reserved

Bit 6

R/W

Reserved

Bit 5

Unused

Bit 4

Unused

Bit 3

R/W

FIFODP[1]

Bit 2

R/W

FIFODP[0]

Bit 1

R/W

Reserved

Bit 0

R/W

Reserved

FIFODP[1:0]:

The FIFODP[1:0] bits determine the transmit FIFO cell depth. FIFO depth

control may be important in systems where the cell latency through the TACP

must be minimized. When the FIFO is filled to the specified depth, the TACP

back pressures the cell stream from the TALP block. The selectable FIFO cell

depths are shown below:

FIFODP[1]

FIFODP[0]

FIFO DEPTH

4 cells

3 cells

2 cells

1 cell

Reserved:

The reserved bits must be programmed to logic zero for proper operation.

PM7375-SC Datasheet(PDF) 182 Page - PMC-Sierra, Inc

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