PM6341E1XC Datasheet, PDF (226/272 Pages) PMC-Sierra, Inc – E1 FRAMER/TRANSCEIVER

DATA SHEET
PMC-910419
ISSUE 8
Figure 30 - Diagnostic Metallic Loopback
PM6341 E1XC
E1 FRAMER/TRANSCEIVER
XPLS
DJAT
TRAN
BTSIG
BTPCM
BTCLK
BTFP
ELST
BRFPI
BRCLK
BRPCM
RSLC
CDRC
RPCM
RCLK
FRMR
14.5 Using the Per-Channel Serial Controllers
14.5.1 Initialization
Before the TPSC block can be used, a proper initialization of the internal
registers must be performed to eliminate erroneous control data from being
produced on the block outputs. The output control streams should be disabled
by setting the PCCE bit in the TPSC Configuration Register to logic 0. Then, all
64 locations of the TPSC must be filled with valid data. Finally, the output
streams can be enabled by setting the PCCE bit in the TPSC Configuration
Register to logic 1.
14.5.2 Direct Access Mode
Direct access mode to the TPSC is not used in the E1XC. However, direct access
mode is selected by default whenever the E1XC is reset. The IND bit within the
TPSC Configuration Register must be set to logic 1 after a reset is applied.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE 210