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PM7344 Datasheet(PDF) 122 Page - PMC-Sierra, Inc

Part # PM7344
Description  SATURN QUAD T1/E1 MULTI-PHY USER NETWORK INTERFACE DEVICE
PDF  293 Pages
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Manufacturer  PMC [PMC-Sierra, Inc]
Direct Link  http://www.pmc-sierra.com
Logo PMC - PMC-Sierra, Inc

PM7344 Datasheet(HTML) 122 Page - PMC-Sierra, Inc

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PM7344 S/UNI-MPH
DATA SHEET
PMC-950449
ISSUE 6
MULTI-PHY USER NETWORK INTERFACE
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
106
Register 019H, 119H, 219H and 319H: DJAT Reference Clock Divisor (N1)
Control
Bit
Type
Function
Default
Bit 7
R/W
N1[7]
0
Bit 6
R/W
N1[6]
0
Bit 5
R/W
N1[5]
1
Bit 4
R/W
N1[4]
0
Bit 3
R/W
N1[3]
1
Bit 2
R/W
N1[2]
1
Bit 1
R/W
N1[1]
1
Bit 0
R/W
N1[0]
1
These registers define an 8-bit binary number, N1, which is one less than the
magnitude of the divisor used to scale down the DJAT PLL reference clock input.
The REF divisor magnitude, (N1+1), is the ratio between the frequency of REF
input and the frequency applied to the phase discriminator input.
Writing to this register will reset the PLL and, if the SYNC bit in the DJAT
Configuration register is high, will also reset the FIFO.



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