hsp50214 Intersil Corporation, hsp50214 Datasheet - Page 44
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hsp50214
Manufacturer Part Number
hsp50214
Description
Programmable Downconverter
Manufacturer
Intersil Corporation
Datasheet
1.HSP50214.pdf
(54 pages)
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POSITION
POSITION
POSITION
POSITION
POSITION
31-0
31-8
N/A
N/A
BIT
BIT
BIT
BIT
BIT
7-0
1
0
Clear Phase
Accumulator
Timing NCO Phase
Accumulator Load
On Update
Timing NCO Center
Frequency
Reserved
Timing NCO Phase
Offset
Timing Frequency
Strobe
Timing Phase Strobe
CONTROL WORD 12: TIMING NCO CENTER FREQUENCY (SYNCHRONIZED TO PROCCLK)
CONTROL WORD 11: TIMING NCO CONFIGURATION (SYNCHRONIZED TO PROCCLK)
CONTROL WORD 14: TIMING FREQUENCY STROBE (SYNCHRONIZED TO PROCCLK)
FUNCTION
FUNCTION
FUNCTION
FUNCTION
FUNCTION
CONTROL WORD 15: TIMING PHASE STROBE (SYNCHRONIZED TO PROCCLK)
CONTROL WORD 13: TIMING PHASE OFFSET (SYNCHRONIZED TO PROCCLK)
0- Enable Accumulator.
1- Zero Feedback in Accumulator.
When this bit is set to 1, the P update to the timing NCO frequency or an external timing NCO
load using SYNCIN2 will zero the feedback of the phase accumulator as well as update the
phase and frequency. This function can be used to set the NCO to a known phase synchronized
to an external event.
These bits control the frequency of the timing NCO. The frequency range of the NCO is from 0
to F
puted by the equation: N =(f
register. After loading, a transfer to the active register is done by writing to Control Word 14 or
by generating a SYNCIN2 with Control Word 11 bit 5 set to 1.
Reserved.
These bits are used to offset the phase of the carrier NCO. The range is 0 to 1 times the resa-
mpler input period interpreted either as
the MSB. This location is a holding register. After loading, a transfer to the active register is done
by writing to Control Word 15 or by generating a SYNCIN2 with Control Word 11 bit 5 set to 1.
Writing to this address updates the active timing NCO frequency register in the timing NCO (see
Timing NCO Section).
Writing to this address updates the active timing NCO phase offset register in the timing NCO
(see Timing NCO Section).
RESAMP
where F
HSP50214
RESAMP
44
OUT
is the input sample rate to the re-sampling filter. The bits are com-
/F
RESAMP
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
T/2 (2’s complement) or 0 to T (offset binary). Bit 7 is
)*2
32
. Bit 31 is the MSB. This location is a holding