DS3105 Maxim Integrated Products, DS3105 Datasheet - Page 52

• Manufacturer Part Number: DS3105
• Description: Line Card Timing IC
• Manufacturer: Maxim Integrated Products

Register Name:
Register Description:
Register Address:
Name
Default
Bits 7 to 4: Highest Priority Valid Reference (REF1[3:0]). This real-time status field indicates the highest-priority
valid input reference. When T4T0 = 0 in the
the T0 DPLL. When T4T0=1, it indicates the highest priority reference for the T4 DPLL. Note that an input
reference cannot be indicated in this field if it has been marked invalid in the
the T0 DPLL is in non-revertive mode (REVERT = 0 in the
as the SELREF[3:0] field. See section 7.6.2.
Bits 3 to 0: Selected Reference (SELREF[3:0]). This real-time status field indicates the current selected
reference. When T4T0=0 in the
T4T0 = 1, it indicates the selected reference for the T4 DPLL. Note that an input clock cannot be indicated in this
field if it has been marked invalid in the
(REVERT = 0 in the
7.6.2.
Confidential. Document Issued Under Non-Disclosure Agreement. Confidential. Document Issued Under Non-Disclosure Agreement.
0000 = No valid input reference available
0001 to 0010 = {unused value}
0011 = Input IC3
0100 = Input IC4
0101 = Input IC5
0110 = Input IC6
0111 to 1000 = {unused value}
1001 = Input IC9
1010 to 1111 = {unused values}
0000 = No valid input reference available
0001 to 0010 = {unused value}
0011 = Input IC3
0100 = Input IC4
0101 = Input IC5
0110 = Input IC6
0111 to 1000 = {unused value}
1001 = Input IC9
1010 to 1111 = {unused value}
Bit 7
0
MCR3
Bit 6
register) this field may not have the same value as the REF1[3:0] field. See section
0
MCR11
PTAB1
Priority Table Register 1
0Ah
REF1[3:0]
Preliminary. Subject to Change Without Notice.
VALCR1
register, this field indicates the selected reference for the T0 DPLL. When
Bit 5
0
MCR11
or
VALCR2
52 of 110
register, this field indicates the highest priority reference for
Bit 4
0
MCR3
register. When the T0 DPLL is in non-revertive mode
register) this field may not have the same value
Bit 3
0
VALCR1
Bit 2
0
SELREF[3:0]
or
VALCR2
Bit 1
0
register. When
Bit 0
DS3105
0