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System Clock Generator
1.4.4.3 Clock Generator Control Register 3 (CGCR3) [1C22h]
The clock generator control register 3 (CGCR3) is shown in Figure 1-8 and described in Table 1-15.
Figure 1-8. Clock Generator Control Register 3 (CGCR3) [1C22h]
15 0
INIT
R/W-0806h
LEGEND:R/W = Read/Write; -n= value after reset
Table 1-15. Clock Generator Control Register 3 (CGCR3) Field Descriptions
Bit Field Value Description
15-0 INIT 0x0806h Initializationbits for the DSP clock generator. These bits are used for testing purposes and
mustbe initialized with 0x806 during PLL configuration for proper operation of the PLL.
1.4.4.4 Clock Generator Control Register 4 (CGCR4) [1C23h]
The clock generator control register 4 (CGCR4) is shown in Figure 1-9 and described in Table 1-16.
Figure 1-9. Clock Generator Control Register 4 (CGCR4) [1C23h]
15 10 9 8 7 0
Reserved OUTDIVEN Reserved ODRATIO
R-0 R/W-0 R-0 R/W-0
LEGEND:R/W = Read/Write; R = Read only; -n= value after reset
Table 1-16. Clock Generator Control Register 4 (CGCR4) Field Descriptions
Bit Field Value Description
15-10 Reserved 0 Reserved.
9 OUTDIVEN Outputdivider enable bit. This bit determines whether the output divider of the PLL is are
enabledor bypassed.
0 Theoutput divider is bypassed.
1 Theoutput divider is enabled.
8 Reserved 0 Reserved.
7-0 ODRATIO 0-FFh Dividerratiobits for the output divider of the PLL.
Dividervalue = ODRATIO + 1.
31
SPRUFX5A–October 2010 –Revised November 2010 SystemControl
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