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VIC Port Registers

6.5.2 VIC Input Register (VICIN)

The DSP writes the input bits for VCXO interpolated control in the VIC input register (VICIN). The DSP decides how often to update VICIN. The DSP can write to VICIN only when the GO bit in the VIC control register (VICCTL) is set to 1. The VIC module uses the MSBs of VICIN for precision values less than 16.

The VIC input register (VICIN) is shown in Figure 6-4and described in Table 6-5.

 

Figure 6-4. VIC Input Register (VICIN)

31

16

 

Reserved

 

R-0

15

0

VICINBITS

R/W-0

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

Table 6-5. VIC Input Register (VICIN) Field Descriptions

Bit

field

symval (1)

Value

Description

31-16

Reserved

-

0

Reserved. The reserved bit location is always read as 0. A value written to this field

 

 

 

 

has no effect.

15-0

VICINBITS

OF(value)

0-FFFFh

The DSP writes the input bits for VCXO interpolated control to the VIC input bits.

 

 

DEFAULT

0

 

(1)For CSL implementation, use the notation VIC_VICIN_VICINBITS_symval

172

VCXO Interpolated Control Port

SPRUEM1 –May 2007

 

 

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Texas Instruments TMS320DM648 manual VIC Input Register Vicin Field Descriptions, Vicinbits