PM8610-BIAP PMC [PMC-Sierra, Inc], PM8610-BIAP Datasheet - Page 276

• Manufacturer Part Number: PM8610-BIAP
• Description: SBS Telecom Standard Product Data Sheet Preliminary
• Manufacturer: PMC [PMC-Sierra, Inc]

Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-2000168, Issue 3
Register 0EBH: SYSDLL Control Status
The SYSDLL Control Status Register provides information on the operation of the DLL
connected to the SYSCLK input.
RUN
CHANGE
Bit
Bit 15
Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
The DLL lock status register bit (RUN) indicates the DLL found a delay line tap in which the
phase difference between the rising edge of the reference clock and the rising edge of
SYSCLK is zero. After system reset, RUN is logic zero until the phase detector indicates an
initial lock condition. When the phase detector indicates lock, RUN is set to logic one.
The RUN register bit is cleared only by a system reset (RSTB) or a software reset (in the SBS
Master Reset Register). RUN is forced high when the OVERRIDE register is set high or
when the VERN_EN register is set high.
The delay line tap change register bit (CHANGE) indicates the DLL has moved to a new
delay line tap. CHANGE is set high for eight SYSCLK cycles when the DLL moves to a
new delay line tap.
Type
R
R
R
R
R
R
R
SYSCLKI
ERRORI
CHANGEI
ERROR
CHANGE
RUN
Function
Unused
Unused
Unused
Unused
Unused
Unused
Unused
Unused
DLL_REFCLKI
Unused
Default
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
0
SBS Telecom Standard Product Data Sheet
Preliminary
276