Texas Instruments TMS320C64x DSP Benutzerhandbuch
VIC Port Registers
VCXO Interpolated Control Port
6-6
SPRU629
6.5.1
VIC Control Register (VICCTL)
The VIC control register (VICCTL) is shown in Figure 6–3 and described in
Table 6–4.
Table 6–4.
Figure 6–3. VIC Control Register (VICCTL)
31
16
Reserved
R-0
15
4 3
1
0
Reserved
PRECISION
GO
R-0
R/W-0
R/W-0
Legend: R = Read only; R/W = Read/Write; -n = value after reset
Table 6–4. VIC Control Register (VICCTL) Field Descriptions
Bit
field
†
symval
†
Value
Description
31–4
Reserved
–
0
Reserved. The reserved bit location is always read as 0. A
value written to this field has no effect.
value written to this field has no effect.
3–1
PRECISION
0–7h
Precision bits determine the resolution of the interpolation. The
PRECISION bits can only be written when the GO bit is cleared
to 0. If the GO bit is set to 1, a write to the PRECISION bits
does not change the bits.
PRECISION bits can only be written when the GO bit is cleared
to 0. If the GO bit is set to 1, a write to the PRECISION bits
does not change the bits.
16BITS
0
16 bits
15BITS
1
15 bits
14BITS
2h
14 bits
13BITS
3h
13 bits
12BITS
4h
12 bits
11BITS
5h
11 bits
10BITS
6h
10 bits
9BITS
7h
9 bits
† For CSL implementation, use the notation VIC_VICCTL_field_symval