PM5380-BI PMC-Sierra, Inc., PM5380-BI Datasheet - Page 310
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PM5380-BI
Manufacturer Part Number
PM5380-BI
Description
Network Interface, SATURN User Network Interface (8x155) Telecom Standard Product
Manufacturer
PMC-Sierra, Inc.
Datasheet
1.PM5380-BI.pdf
(440 pages)
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Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC- 2010299, Issue 2
Register 0x1010: TUL3 Interface Configuration
FIFORST:
TCA_TPA_INV:
TPRTYP:
L3MODEINV:
The FIFORST bit is used to reset the system interface channel transmit FIFOs. When
FIFORST is set low, the channel transmit FIFOs operate normally. When FIFORST is set
high, the channel transmit FIFOs are immediately emptied. The channel FIFOs remain
empty and continue to ignore writes operations until a logic zero is written to FIFORST.
The TCA/PTPA and STPA outputs will be low when FIFORST is set high to prevent a
Level 3 layer device from attempting to write data into the FIFOs.
The TCA_TPA_INV bit is used to invert the polarity of the TCA/PTPA and STPA outputs.
When TCA_TPA_INV is set low, the TCA_PTPA and STPA outputs operate normally.
When TCA_TPA_INV is set high, the polarity of the control signals inverts. Therefore,
when TCA_TPA_INV is set high, a full channel FIFO is identified by TCA_PTPA set high.
The TPRTYP bit selects even or odd parity for the TPRTY output on the transmit Level 3
interface. When TPRTYP is set high, the TPRTY input is the even parity for inputs
TDAT[31:0]. When TPRTYP is set low, the TPRTY input is odd party for inputs
TDAT[31:0].
The L3MODE invert register bit provides a method to override the POS_ATMB input using
software in the transmit direction. The value of the POS_ATMB input is logically XOR’ed
with the value of the L3MODEINV register bit to determine the mode of the transmit Level
3 interface.
Bit
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Type
R
R/W
R/W
R/W
R/W
R/W
Function
L3MODE
L3MODEINV
Reserved
Unused
Unused
TPRTYP
TCA_TPA_INV
FIFORST
S/UNI®-8x155 ASSP Telecom Standard Product Data Sheet
Default
X
0
0
X
X
0
0
1
Released
310
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