hsp50210 Intersil Corporation, hsp50210 Datasheet - Page 41

• Manufacturer Part Number: hsp50210
• Description: Digital Costas Loop
• Manufacturer: Intersil Corporation

POSITION
POSITION
POSITION
POSITION
31-16
15-13
31-8
BIT
N/A
BIT
N/A
BIT
BIT
6-0
12
11
7
Stop Lock Detector for
Reading
Restart Lock Detector
Not Used
Slicer Output Format
Soft Decision
Threshold
Not Used
Reserved
Serial Data Sync
Polarity
(SOF output)
Serial Data Sync
Polarity
(COF output)
FUNCTION
FUNCTION
FUNCTION
FUNCTION
3-41
TABLE 40. SOFT DECISION SLICER CONFIGURATION CONTROL REGISTER
TABLE 38. HALT LOCK DETECTOR FOR READING CONTROL REGISTER
TABLE 41. SERIAL OUTPUT CONFIGURATION CONTROL REGISTER
TABLE 39. RESTART LOCK DETECTOR CONTROL REGISTER
Writing this location halts the Lock Detector State Machine at the end of the current Lock Detector
Accumulator integration cycle. This function is provided so that the Lock Detector integrators can be
stopped for reading via the microprocessor interface (only useful when the Lock Detector is under
internal state machine control). Bit 7 of the internal status register can be monitored via the
Microprocessor Interface to determine when the Lock Detector has stopped and is ready for reading.
See Table 13 for information on the internal status bits. The Lock Detector will remain stopped until
restarted (see Restart Lock Detector Control Register: Table 39).
Writing this location restarts the Lock Detector State Machine following a read of the Lock Detector. Note:
Stopping the Lock Detector for reading is not required in Microprocessor Control Mode since the
Lock Detector Accumulators stop at the end of each integration cycle. See also Table 44.
No programming required.
0 = Soft decision outputs are in sign/magnitude format.
1 = Soft decision outputs are in two’s complement format.
The input to the slicer is compared against thresholds which are 1x, 2x and 3x the value programmed
here. The slicer output depends on the relationship of the I or Q magnitude to the 3 soft thresholds as
given in Table 7. The threshold is programmed as a fractional unsigned value with the following bit
weightings:
0. 2
Note: Since the signal magnitude on either the I or Q path ranges between 0.0 and
threshold value should not exceed 1.0/3 = 0.33. Bit position 6 is the MSB.
No programming required.
Set to zero for proper operation.
0 = SOFSYNC pulses “High” one serial clock before data word on SOF.
1 = SOFSYNC pulses “Low” one serial clock before data word on SOF.
Set to 0 for use with the HSP50110.
0 = COFSYNC pulses “High” one serial clock before data word on COF.
1 = COFSYNC pulses “Low” one serial clock before data word on COF.
Set to 0 for use with the HSP50110.
-1
2
-2
2
-3
2
-4
DESTINATION ADDRESS = 24
DESTINATION ADDRESS = 25
DESTINATION ADDRESS = 26
DESTINATION ADDRESS = 27
2
-5
2
-6
HSP50210
2
-7
.
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
~
1.0, the