Visible to Intel only — GUID: vgo1660918552834
Ixiasoft
Visible to Intel only — GUID: vgo1660918552834
Ixiasoft
27.4. Interlacer IP Registers
In the software API these register names appear with a prefix of INTEL_VVP, INTEL_VVP_CORE, or INTEL_VVP_INTERLACER as appropriate and with an optional REG suffix
Address | Register | Access | Description | |
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Lite | Full | |||
Parameterization registers | ||||
0x0000 | PROD_ID | RO | Read this register to retrieve the interlacer product ID. This register always returns 0x0000_0232. |
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0x0004 | VER | RO | Read this register to retrieve the version information for the Intel Quartus release that Intel uses to build the interlacer. |
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0x0008 | LITE_MODE | RO | Read this register to determine if lite mode is on. This register returns 0 when you turn off lite mode and 1 when you turn on lite mode. | |
0x000C | DEBUG_ENABLED | RO | Read this register to determine if debug features are on. This register returns 1 if Debug features are on and 0 otherwise |
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0x0010 to 0x011F unused | ||||
Control and debug registers For more details of these registers, refer to Image information control packets in the Intel FPGA Streaming Video Protocol Specification You must turn on Debug features to read the values in these registers. If Debug features are off, reads to these registers return undefined data. The only exception is the STATUS register, whose value you can always read. |
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0x0120 | IMG_INFO_WIDTH | RW | RO | When you turn on lite mode , use this register to set the expected width of incoming video fields. When you turn off lite mode and turn on Debug features, this register returns the width that the interlacer derives from information in the image information control packet. |
0x0124 | IMG_INFO_HEIGHT | RW | RO | When you turn on lite mode , use this register to set the expected height of incoming video fields. When you turn off lite mode and turn on Debug features, this register returns the height that the interlacer derives from information in the image information control packet. |
0x0128 | IMG_INFO_INTERLACE | RW | RO | When you turn on lite mode , use this register to set the expected interlace format (standard image information format interlace nibble) of incoming video fields. When you turn off lite mode and turn on Debug features, this register returns the interlace nibble that the interlacer receives in the image information control packet. |
0x012C | Reserved | - | - | Reserved |
0x0130 | IMG_INFO_COLORSPACE | - | RO | When you turn off lite mode and turn on Debug features, this register returns the color space that the interlacer derives from information in the image information control packet. Unused when you turn on lite mode. |
0x0134 | IMG_INFO_SUBSAMPLING | - | RO | When you turn off lite mode and turn on Debug features, this register returns the subsampling that the interlacer derives from information in the image information control packet. Unused when you turn on lite mode. |
0x0138 | IMG_INFO_COSITING | - | RO | When you turn off lite mode and turn on Debug features, this register returns the chroma siting that the interlacer derives from information in the image information control packet. Unused when you turn on lite mode. |
0x013C | IMG_INFO_FIELD_COUNT | - | RO | When you turn off lite mode and turn on Debug features, this register returns the field count that the interlacer derives from information in the image information control packet. Unused when you turn on lite mode. |
0x0138 to 0x013C unused | ||||
0x0140 | STATUS | RO | Bit 0: Status bit. 1 = interlacer is processing a video field, 0 otherwise. Lite mode off only: Bit 1: Pending register updates bit. Any writes to the enable, ctrl_override or send_f1_first registers (0x0148 – 0x0150) cause the IP to raise the pending register updates bit, to indicate outstanding changes to the interlacer settings. The IP lowers this bit at the next field boundary after a write to the COMMIT register. |
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0x0144 | COMMIT | RW | Only used when you turn off lite mode. the IP holds any changes to the interlacer settings via the register map until a write is issued to this register. The value you write is unimportant. | |
0x0148 | ENABLE | RW | Bit 0 of this register controls the creation of interlaced fields from progressive input. Set bit 0 to 0 to turn off interlacing and propagate progressive frames unaltered. Set bit 0 to 1 to turn on interlacing of progressive frames. | |
0x014C | CTRL_OVERRIDE | RW | Bit 0 of this register controls override of the interlacing sequence by the interlaced nibble in the incoming image information packets (Lite mode off only). Set bit 1 of this register to 0 to turn off interlaced nibble override. Set bit 0 to 1 to turn on interlaced nibble override. | |
0x0150 | SEND_F1_FIRST | RW | Bit 0 if this register controls whether an F0 or an F1 field is created first after any reset to the interlacing sequence. Set bit 0 to 0 to generate F0 first. Set bit 0 to 1 to generate F1 first. |
Register Bit Descriptions
Name | Bits | Description |
Interlacer product ID | 31:0 | This register always returns 0x0000_0232. |
Name | Bits | Description |
Register map version | 7:0 | Register map version. Returns 0x01. |
Unused | 15:8 | Unused. Returns 0x04 |
QPDS minor revision | 23:16 | Updated for each release. For 22.2, returns 0x02 |
QPDS major revision | 31:24 | Updated for each release. For 22.2, returns 0x16. |
Name | Bits | Description |
Lite mode parameterization bit | 31:0 | Returns 1 if you turn on lite mode and 0 otherwise |
Name | Bits | Description |
Debug features parameterization bit | 31:0 | Returns 1 you turn on Debug features and 0 otherwise |
Name | Bits | Description |
Width bits | 15:0 | If lite mode is on, write to this register to set the expected width of the incoming video fields. If lite mode is off and Debug features are on, this register returns the width-1 field from the most recently received image information packet and adds 1 to return a value for width. |
unused | 31:16 | unused |
Name | Bits | Description |
Height bits | 15:0 | If lite mode is on, write to this register to set the expected height of the incoming video fields. If lite mode is off and Debug features are on, this register reads the height-1 field from the most recently received image information packet and adds 1 to return a value for height. |
unused | 31:16 | unused |
Name | Bits | Description |
IntlaceNibble bits | 3:0 | If lite mode is on, write to this register to set the expected interlace format of the incoming video fields (interlace nibble). If lite mode is off and Debug features are on, this register returns the intlaceNibble field from the most recently received image information packet. |
unused | 31:4 | unused |
Name | Bits | Description |
CSP code bits | 6:0 | If lite mode is on, this register has no function. If lite mode is off and Debug features are on, this register returns the 7 bit CSP field from the most recently received image information packet. |
unused | 31:7 | unused |
Name | Bits | Description |
SubSa code bits | 1:0 | If lite mode is on, this register has no function. If lite mode is off and Debug features are on, this register returns the SUBSA field from the most recently received image information packet. |
unused | 31:2 | unused |
Name | Bits | Description |
Cosite code bits | 1:0 | If lite mode is on, this register has no function. If lite mode is off and Debug features are on, this register returns the COSITE field from the most recently received image information packet. |
Unused | 31:2 | Unused |
Name | Bits | Description |
Count bits | 6:0 | If lite mode is on, this register has no function. If lite mode is off and Debug features are on, this register returns the 7 bit FIELD_COUNT field from the most recently received image information packet. |
Unused | 31:7 | Unused |
Name | Bits | Description |
Status bit | 0 | 1 = interlacer is processing a video field, 0 otherwise. |
Pending register updates bit | 1 | 1 = interlacer has pending updates, 0 otherwise |
Unused | 31:2 | Unused |
Name | Bits | Description |
Unused | 31:0 | Unused |
Name | Bits | Description |
Interlacing enable | 0 | Set to 1 to turn on interlacing, set to 0 to turn off interlacing |
Unused | 31:1 | Unused |
Name | Bits | Description |
Interlace nibble override | 0 | Set to 1 to turn on interlace nibble override, set to 0 to turn off interlace nibble override |
Unused | 31:1 | Unused |
Name | Bits | Description |
Send F1 first | 0 | Set to 1 to send F1 first after a reset to the interlacing sequence, set to 0 to send F0 first |
Unused | 31:1 | Unused |