ALXD800EEXJCVD C3 AMD (ADVANCED MICRO DEVICES), ALXD800EEXJCVD C3 Datasheet - Page 423
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ALXD800EEXJCVD C3
Manufacturer Part Number
ALXD800EEXJCVD C3
Description
Manufacturer
AMD (ADVANCED MICRO DEVICES)
Datasheet
1.ALXD800EEXJCVD_C3.pdf
(680 pages)
Specifications of ALXD800EEXJCVD C3
Operating Temperature (min)
0C
Operating Temperature (max)
85C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Lead Free Status / RoHS Status
Compliant
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Video Processor Register Descriptions
AMD Geode™ LX Processors Data Book
63:32
31:28
25:22
19:17
16:14
13:10
Bit
7:6
5:4
27
26
21
20
9
8
3
Name
RSVD (RO)
SP
RSVD (RO)
DAC_VREF
RSVD (RO)
GV_GAM
VG_CK
RSVD (RO)
CRT_SYNC
_SKW
SP
CRT_VSYNC
_POL
CRT_HSYNC
_POL
RSVD (RO)
SP
DAC_BL_EN
Description
Reserved (Read Only). Reads back as 0.
Spares. Bits are read/write, but have no function.
Reserved (Read Only). Reads back as 0.
Select CRT DAC VREF. Allows use of an external voltage reference for CRT DAC.
0: Disable external VREF.
1: Use external VREF.
Reserved (Read Only). Reads back as 0.
Graphics/Video Gamma. Selects whether the graphic or video data should pass
through the Gamma Correction RAM.
0: Graphic data passes through the Gamma Correction RAM.
1: Video data passes through the Gamma Correction RAM.
Video/Graphics Color Key Select. Selects whether the graphic data is used for color-
keying or the video data is used for chroma-keying. Note that this affects the final output
with or without blending enabled. See Figure 6-31 on page 438 and Table 6-64 on page
439 for details.
0: Graphic data is compared to the color key.
1: Video data is compared to the chroma key.
Reserved (Read Only). Reads back as 0.
CRT Sync Skew. Represents the number of pixel clocks to skew the horizontal and ver-
tical sync that are sent to the CRT. This field should be programmed to 100 (i.e., baseline
sync is not moved) as the baseline. Via this register, the sync can be moved forward
(later) or backward (earlier) relative to the pixel data. This register can be used to com-
pensate for possible delay of pixel data being processed via the Video Processor.
000: Sync moved 4 clocks backward.
001: Sync moved 3 clocks backward.
010: Sync moved 2 clocks backward.
011: Sync moved 1 clock backward.
100: Baseline sync is not moved. (Default)
101: Sync moved 1 clock forward.
110: Sync moved 2 clocks forward.
111: Sync moved 3 clocks forward.
Spares. Bits are read/write, but have no function.
CRT Vertical Synchronization Polarity. Selects the polarity for CRT vertical sync.
0: CRT vertical sync is normally low and is set high during the sync interval.
1: CRT vertical sync is normally high and is set low during the sync interval
CRT Horizontal Synchronization Polarity. Selects the polarity for CRT horizontal sync.
0: CRT horizontal sync is normally low and is set high during sync interval.
1: CRT horizontal sync is normally high and is set low during sync interval.
Reserved (Read Only). Reads back as 0.
Spares. Bits are read/write, but have no function.
DAC Blank Enable. Controls blanking of the CRT DACs.
0: DACs are constantly blanked.
1: DACs are blanked normally (i.e., during horizontal and vertical blank).
DCFG Bit Descriptions
33234H
423
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