L64724 LSI Logic Corporation, L64724 Datasheet - Page 94

• Manufacturer Part Number: L64724
• Description: Satellite Receiver
• Manufacturer: LSI Logic Corporation

3.6.35 Clock Loop Terms (Group 4: APR 42)
3-64
CAR_OPEN
CAR_SW
Read/Write: R/W
CLK_LAMBDA_SEL
L64724 Registers
APR
42
D7
CLK_LAMBDA_SEL[7:4]
details, see
page
Carrier Loop Open
Set the CAR_OPEN bit to 1 to disable the carrier loop
(the carrier loop integrator maintains its current value).
When the CAR_OPEN bit is 0, the carrier loop operates
normally.
Sweep Enable for Carrier Loop
Set the CAR_SW bit to 1 to enable the carrier acquisition
sweep generator. For more information see
“Carrier Acquisition,” page 5-13.
Clock Loop Lambda
Program the CLK_LAMBDA_SEL[7:4] bits with values
that set the parameters of the clock recovery loop. For
details, see
ing Modes,” page 5-9.
CAR_PED_SEL Estimator Selected
CAR_OPEN
CAR_SW
5-16, and
0
1
0
1
0
1
Section 5.7.2, “Carrier Phase Tracking,”
Section 5.6.1, “Clock Acquisition and Track-
Table
Decision Directed Maximum Likelihood
(DDML)
Nondata Aided Maximum Likelihood
(NDAML)
Definition
Enable the Carrier Loop
Disable the Carrier Loop
Definition
Sweep mechanism off
Sweep mechanism on
D4
5.4.
D3
CLK_MU_SEL[3:0]
Section 5.7.1,
D0
[7:4]
1
0