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Video Capture Registers
Table
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| Description |
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Bit | field (1) | symval (1) | Value | BT.656 or Y/C Mode | Raw Data Mode | TCI Mode |
16 | HRST | OF(value) |
| HCOUNT reset method bit. |
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| DEFAULT | 0 | EAV or VCTL1 active edge. | Not used. | Not used. |
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| EAV |
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| SAV | 1 | SAV or VCTL1 inactive edge. | Not used. | Not used. |
15 | VCEN | OF(value) |
| Video capture enable bit. Other bits in VCBCTL (except RSTCH and BLKCAP bits) | ||
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| may only be changed when VCEN = 0. |
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| DEFAULT | 0 | Video capture is disabled. |
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| DISABLE |
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| ENABLE | 1 | Video capture is enabled. |
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Reserved | - | 0 | Reserved. The reserved bit location is always read as 0. A value written to this field | |||
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| has no effect.. |
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12 | LFDE | OF(value) |
| Long field detect enable bit. |
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| DEFAULT | 0 | Long field detect is disabled. | Not used. | Not used. |
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| DISABLE |
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| ENABLE | 1 | Long field detect is enabled. | Not used. | Not used. |
11 | SFDE | OF(value) |
| Short field detect enable bit. |
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| DEFAULT | 0 | Short field detect is disabled. | Not used. | Not used. |
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| DISABLE |
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| ENABLE | 1 | Short field detect is enabled. | Not used. | Not used. |
10 | RESMPL | OF(value) |
| Chroma |
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| DEFAULT | 0 | Chroma | Not used. | Not used. |
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| DISABLE |
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| ENABLE | 1 | Chroma is horizontally | Not used. | Not used. |
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| 4:2:0 interspersed before saving |
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| to chroma buffers. |
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9 | Reserved | - | 0 | Reserved. The reserved bit location is always read as 0. A value written to this field | ||
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| has no effect. |
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8 | SCALE | OF(value) |
| Scaling select bit. |
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| DEFAULT | 0 | No scaling | Not used. | Not used. |
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| NONE |
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| HALF | 1 | ½ scaling | Not used. | Not used. |
7 | CON(2) | OF(value) |
| Continuous capture enable bit. |
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| DEFAULT | 0 | Continuous capture is disabled. |
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| DISABLE |
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| ENABLE | 1 | Continuous capture is enabled. |
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6 | FRAME(2) | OF(value) |
| Capture frame (data) bit. |
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| DEFAULT | 0 | Do not capture frame. | Do not capture single | Do not capture single |
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| NONE |
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| data block. | packet. |
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| FRMCAP | 1 | Capture frame. | Capture single data | Capture single packet. |
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| block. |
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5 | CF2(2) | OF(value) |
| Capture field 2 bit. |
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| NONE | 0 | Do not capture field 2. | Not used. | Not used. |
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| DEFAULT | 1 | Capture field 2. | Not used. | Not used. |
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| FLDCAP |
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(2)For complete encoding of these bits, see Table
SPRUEM1 | Video Capture Port | 83 |
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