cx25840 Conexant Systems, Inc., cx25840 Datasheet - Page 185

• Manufacturer Part Number: cx25840
• Description: Video Decoder And Broadcast Audio
• Manufacturer: Conexant Systems, Inc.

CX25840/1/2/3 Data Sheet
102284B
8/3/05
DLL1 Diagnostic Control 4
[7]
[6:5]
[4:1]
[0]
DLL2 Diagnostic Control 1
[7:0]
DLL2 Diagnostic Control 2
[7:6]
[5:3]
[2]
[1]
[0]
DLL2 Diagnostic Control 3
[7]
[6:4]
[3:1]
[0]
Bits
Bits
Bits
Bits
RW
RZ
RW
RW
RZ
RW
RW
RW
RW
RW
RW
RW
RW
RW
Type
Type
Type
Type
0
00
0000
0
0x00
00
100
0
0
1
1
110
011
1
Default
Default
Default
Default
DLL1_BYPASS
RESERVED
CURRSET
DLYS_HIGH
RESERVED
COMP_GT_LOW
CHPREF
DOWN_OVRD
UP_OVRD
FLD
DLYS_LOW
DEPTH
COMP_LT
COMP_GT_HIGH
Name
Name
Name
Name
Conexant
Clock reference for DLL1 (ADC DLL) input from clock pad rather
than crystal input. Overrides CLK_OUT_MODE.
High bit of DLYS.
Adds delay in path of reference.
Used in False Lock Detect: counts this many pulses in half period
to determine pulse-swallow.
Charge pump current.
Bit2 = 50 µA
Bit1 = 25 µA
Bit0 = 12.5 µA
Static is 6 µA
Overrides the up command to PFD.
False Lock Detect mode.
Low bit of DLYS
Adds delay in path of reference.
Used in False Lock detect: increases stability of decisions in FLD.
111:x7 routes DLL output to test pad
110:x6 puts DLL in fast lock mode
Used in False Lock Detect: counts this many pulses in half period
to determine up override.
High bit of COMP_GT.
Used in False Lock Detect: counts this many pulses in half period
to determine pulse-swallow.
Changes current used in DLL.
Overrides the down command to PFD.
Description
Description
Description
Description
Address 0x15B
Address 0x15C
Address 0x15D
Address 0x15E
Register Map
5-43