RELEASED
PM73123 AAL1GATOR-8
DATASHEET
PMC-2000097
ISSUE 2
8 LINK CES/DBCES AAL1 SAR
Register 0x84000H: DLL Configuration Register (DLL_CFG_REG)
Bit
Type
Function
Default
15:6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Unused
Reserved
OVERRIDE
Unused
X
0
0
X
0
0
0
R/W
Reserved
Reserved
Reserved
The DLL Configuration Register controls the basic operation of the DLL.
OVERRIDE:
The override control (OVERRIDE) disables the DLL operation. When
OVERRIDE is set low, the DLL generates the clock by delaying the SYS_CLK
until the rising edge of internal SYS_CLK occurs at the same time as the
rising edge of external SYS_CLK. When OVERRIDE is set high, the clock
output is a buffered version of the SYS_CLK input.
Note that when clearing the OVERRIDE bit, the DLL should be reset so that it
acquires sync cleanly. The RUN bit is only cleared by a DLL reset so it will
give a false indication if the DLL is not reset.
PMC-SIERRA, INC. PROPRIETARY AND CONFIDENTIAL
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PMC [ PMC-SIERRA, INC ]
