TMS320C6472ECTZ datasheet(169/269 Pages) TI1

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TMS320C6472

www.ti.com

SPRS612G

– JUNE 2009 – REVISED JULY 2011

7.9.3.6

PLL2 PLLDIV Ratio Change Status Register (DCHANGE)

Whenever a different ratio is written to the PLLDIVn registers, the PLLCTRL flags the change in the

PLLDIV ratio change status registers (DCHANGE). During the GO operation, the PLL controller will only

change the divide ratio of the SYSCLKs with the bit set in DCHANGE. Note that changed clocks will be

automatically aligned to other clocks. The PLLDIV divider ratio change status register is shown in

Figure 7-31 and described in Table 7-40.

Reserved

R-0

Reserved

SYSCLK18

SYSCLK17

SYSCLK16

SYSCLK15

SYSCLK14

SYSCLK13

R-0

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Figure 7-31. PLLDIV Divider Ratio Change Status Register (DCHANGE)

Table 7-40. PLLDIV Divider Ratio Change Status Register (DCHANGE) Field Descriptions

Bit

Field

Value

Description

31:6

Reserved

Reserved. The reserved bit location is always read as 0. A value written to this field has no effect.

SYSCLK18

Identifies when the SYSCLK18 divide ratio has been modified.

SYSCLK18 ratio has not been modified. When GOSET is set, SYSCLK18 will not be affected.

SYSCLK18 ratio has been modified. When GOSET is set, SYSCLK18 will change to the new ratio.

SYSCLK17

Identifies when the SYSCLK17 divide ratio has been modified.

SYSCLK17 ratio has not been modified. When GOSET is set, SYSCLK17 will not be affected.

SYSCLK17 ratio has been modified. When GOSET is set, SYSCLK17 will change to the new ratio.

SYSCLK16

Identifies when the SYSCLK16 divide ratio has been modified.

SYSCLK16 ratio has not been modified. When GOSET is set, SYSCLK16 will not be affected.

SYSCLK16 ratio has been modified. When GOSET is set, SYSCLK16 will change to the new ratio.

SYSCLK15

Identifies when the SYSCLK15 divide ratio has been modified.

SYSCLK15 ratio has not been modified. When GOSET is set, SYSCLK15 will not be affected.

SYSCLK15 ratio has been modified. When GOSET is set, SYSCLK15 will change to the new ratio.

SYSCLK14

Identifies when the SYSCLK14 divide ratio has been modified.

SYSCLK14 ratio has not been modified. When GOSET is set, SYSCLK14 will not be affected.

SYSCLK14 ratio has been modified. When GOSET is set, SYSCLK14 will change to the new ratio.

SYSCLK13

Identifies when the SYSCLK13 divide ratio has been modified.

SYSCLK13 ratio has not been modified. When GOSET is set, SYSCLK13 will not be affected.

SYSCLK13 ratio has been modified. When GOSET is set, SYSCLK13 will change to the new ratio.

C64x+ Peripheral Information and Electrical Specifications

169

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