RELEASED
PM7383 FREEDM-32A256
DATASHEET
PMC-2010336
ISSUE 1
FRAME ENGINE AND DATA LINK MANAGER 32A256
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 configured for non H-MVIP traffic
(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 tristated.
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 configured for non H-MVIP traffic (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.
TBSEL[4:0] cannot select a link configured for H-MVIP traffic.
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 configured for non H-MVIP traffic (TD[31:0]) to
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 tristated.
PROPRIETARY AND CONFIDENTIAL
89
PMC [ PMC-SIERRA, INC ]
