PM7367 datasheet(115/323 Pages) PMC

115 / 323 page

PM7367 FREEDM-32P32

DATA SHEET

PMC-1991499

ISSUE 2

FRAME ENGINE AND DATA LINK MANAGER

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

101

testing is enabled (RBEN set high). RBSEL[4:0] is a binary number that

selects a receive link (RD[31:0]/RCLK[31:0]) to be the source of data for RBD

and RBCLK outputs. RBSEL[4:0] is ignored when RBEN is set low.

RBEN:

The receive bit error rates testing link enable bit (RBEN) controls the receive

bit error rate testing port. When RBEN is set high, RBSEL[4:0] is a binary

number that selects a receive link (RD[31:0]/RCLK[31:0]) to be the source of

data for RBD and RBCLK outputs. When RBEN is set low, RBD and RBCLK

are held tri-stated.

TBSEL[4:0]:

The transmit bit error rates testing link select bits (TBSEL[4:0]) controls the

over-writing of transmit data on TD[31:0] by data on TBD when transmit bit

error rate testing is enabled (TBEN set high) and the selected link is not in

line loopback (LLBEN[n] set low). TBSEL[4:0] is a binary number that selects

a transmit link (TD[31:0]/TCLK[31:0]) to carry the data on TBD. The TBCLK

output is a buffered version of the selected one of TCLK[31:0]. TBSEL[4:0] is

ignored when TBEN is set low.

TBEN:

The transmit bit error rates testing link enable bit (TBEN) controls the transmit

bit error rate testing port. When TBEN is set high and the associated link in

not in line loopback (LLBEN set low), TBSEL[4:0] is a binary number that

selects a transmit link data (TD[31:0]) to be the carry the data on TBD and

selects a transmit link clock (TCLK[31:0]) as the source of TBCLK. When

TBEN is set low, all transmit links are processed normally and TBCLK is held

tri-stated.

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