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NUC970 Technical Reference Manual
Publication Release Date: Dec. 15, 2015
- 1112 -
Revision V1.30
NUC97
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CHNIC
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5.30.7 Register Description
Display Controller Control and Status Register (DCCS)
The register includes Display-Output-Control, Stream-Control and Display-Video-Source-Format-
Control registers.
Register
Offset
R/W
Description
Reset Value
DCCS
0x00
R/W
Display Controller Control and Status Register
0x0000_0000
31
30
29
28
27
26
25
24
Reserved
LACE_F
VSYNC
HACT
VACT
DISP_ON
Reserved
23
22
21
20
19
18
17
16
Reserved
OSD_HUP
OSD_VUP
15
14
13
12
11
10
9
8
ITU_EN
OSD_SRC
Reserved
VA_SRC
7
6
5
4
3
2
1
0
SINGLE
FIELD_INTR
CMD_ON
DISP_INT_EN DISP_OUT_EN
OSD_EN
VA_EN
ENG_RST
Bits
Description
[31:30]
Reserved
Reserved.
[29]
LACE_F
Interlace Mode Display Field Status (Read Only)
0 = Current displayed field is even field.
1 = Current displayed field is odd field.
[28]
VSYNC
Internal Vertical Sync Status (Read Only)
When V_POL (DEVICE_CTRL[21]) = 1 (high active).
0 = Display operation is not within vertical sync period.
1 = Display operation is within vertical sync period.
When V_POL (DEVICE_CTRL[21]) = 0 (low active).
0 = Display operation is within vertical sync period.
1 = Display operation is not within vertical sync period.
[27]
HACT
Display Horizontal Line (Read Only)
0 = Display Controller is not operating for horizontal line display.
1 = Display Controller is operating for horizontal line display.
[26]
VACT
Display Video Frame (Read Only)
0 = Display Controller is not operating for video frame display.
1 = Display Controller is operating for video frame display.
[25]
DISP_ON
Display Controller Active (Read Only)
0 = Display Controller is active.
1 = Display Controller is off.