
____________________________________________________ DS34T101, DS34T102, DS34T104, DS34T108
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GCR1 (Global Control Register) 0x00
Bits
Data Element Name
R/W
Default
Description
1 = H_INT[1] forced inactive (high)
[0]
IPI0
R/W
0
Interrupt Pin Inhibit 0
0 = H_INT[0] normal interrupt output behavior
1 = H_INT[0] forced inactive (high)
GCR2 (Global Control Register 2) 0x04
Bits
Data Element Name
R/W
Default Description
[31:24]
Not Used
-
0
Must be set to zero.
[23:9]
Not Used
-
0
Must be set to zero.
[8]
BRPMU
R/W
0
BERT Rx Performance Monitor Update
This bit causes the Rx BERT performance monitoring registers to
be updated for all ports where local performance monitoring
update is disabled (
BCR.PMUM =1). A 0 to 1 transition causes
the performance monitoring registers to be updated with the latest
data, and the counters reset. If BRPMU goes low before the local
BERT
BSR.PMS bit goes high, an update might not be
performed. This bit has no for ports where
BCR.PMUM=0. This is
an asynchronous signal.
[7:0]
LIUDn
R/W
0
Line Interface Unit Disable n
Bit 7 is LIUD8; bit 0 is LIUD1. When set, each of these bits
disables the corresponding internal LIU and enables the
external LIU (or other component such as an M13 mux or
SONET/SDH mapper).
0 = Internal LIU enabled
1 = Internal LIU disabled
to configure the framer and formatter for NRZ data on RDATFn
and TDATFn. Also, unused LIUs can be powered down by setting
GTRR (Global Transceiver Reset Register) 0x08
Bits
Data Element Name
R/W
Default Description
[31:19]
Not Used
-
0
Must be set to zero.
[18]
TOPRST
R/W
0
TDMoP Core Software Reset
When set, this bit resets all of the TDMoP configuration registers
to their default value.
0 = Normal operation
1 = Reset the TDMoP core
[17]
BSRST
R/W
0
BERT Software Reset
All BERT logic and registers are reset on a 0-to-1 transition of this
bit. The reset is released when a zero is written to this bit.
0 = Normal operation
1 = Reset all BERTs
[16]
FSRST
R/W
0
Framer Software Reset
All framer logic and registers are reset on a 0-to-1 transition of
this bit. The reset is released when a zero is written to this bit.
0 = Normal operation
1 = Reset all framers