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5.4.13 PLLDIV Ratio Change Status Register (DCHANGE)
PLL Controller Registers
The PLLDIV ratio change status register (DCHANGE) is shown in Figure 5-15 and described in
Table 5-17 . DCHANGE indicates if the SYSCLK divide ratio has been modified.
Figure 5-15. PLLDIV Ratio Change Status Register (DCHANGE)
31 16
Reserved
R-0
15 3 2 1 0
Reserved SYS3 SYS2 SYS1
R-0 R-0
(1)
R-0 R-0
LEGEND: R = Read only; - n = value after reset
(1)
For PLLC2, SYS3 is reserved and defaults to 0.
Table 5-17. PLLDIV Ratio Change Status Register (DCHANGE) Field Descriptions
Bit Field Value Description
31-3 Reserved 0 Reserved
2 SYS3 SYSCLK3 divide ratio is modified. Not applicable on PLLC2 (this bit is reserved).
0 SYSCLK3 divide ratio is not modified.
1 SYSCLK3 divide ratio is modified.
1 SYS2 SYSCLK2 divide ratio is modified.
0 SYSCLK2 divide ratio is not modified.
1 SYSCLK2 divide ratio is modified.
0 SYS1 SYSCLK1 divide ratio is modified.
0 SYSCLK1 divide ratio is not modified.
1 SYSCLK1 divide ratio is modified.
SPRU978E – March 2008 PLL Controller 57
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