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DATA SHEET
PM7367 FREEDM-32P32
ISSUE 2
PMC-1991499
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.