PM6341 E1XC
DATA SHEET
PMC-910419
ISSUE 8
E1 FRAMER/TRANSCEIVER
Figure 28
- Line Loopback
BTSIG
BTPCM
BTCLK
BTFP
XPLS
DJAT
TRAN
BRFPI
BRCLK
BRPCM
ELST
RP
RN
RSLC
CDRC
FRMR
RPCM
RCLK
14.4.3 Diagnostic Digital Loopback
When Diagnostic Digital loopback (DDLB) is initiated by writing 04H to the
Master Diagnostics Register, the E1XC is configured to internally connect the
dual-rail positive and negative data pulses output from DJAT to the dual-rail
inputs of CDRC. Conceptually, the data flow through E1XC in this loopback
condition can be shown as follows:
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PMC [ PMC-SIERRA, INC ]
