Visible to Intel only — GUID: lyr1697540679717
Ixiasoft
Visible to Intel only — GUID: lyr1697540679717
Ixiasoft
35.4. Histogram Statistics IP Registers
Address | Register | Access | Description | |
---|---|---|---|---|
Lite 111 | Full | |||
Parameterization registers | ||||
0x0000 | VID_PID | RO | N/A | Read this register to retrieve the ID of the IP. This register always returns 0x6FA7_017B. |
0x0004 | VERSION | RO | N/A | Read this register for the IP version information. |
0x0008 | LITE_MODE | RO | N/A | Read this register to determine if Lite mode is on. This register always returns 1. |
0x000C | DEBUG_ENABLED | RO | N/A | Read this register to determine if Debug features are on. This register returns 0 for off and 1 for on. |
0x0010 | BPS_IN | RO | N/A | Read this register to determine the Bits per color symbol used for the input streaming video interface. |
0x0014 | BPS_OUT | RO | N/A | Read this register to determine the Bits per color symbol used for the output streaming video interface. The value of this register reads the same for its input counterpart. |
0x0018 | NUM_COLOR_IN | RO | N/A | Read this register to determine the Number of color planes for the input streaming video interface. |
0x001C | NUM_COLOR_OUT | RO | N/A | Read this register to determine the Number of color planes for the output streaming video interface. The value of this register reads the same for its input counterpart. |
0x0020 | PIP | RO | N/A | Read this register to determine the Number of pixels in parallel. |
0x0024 | MAX_WIDTH | RO | N/A | Read this register to determine the Maximum field width. |
0x0028 | MAX_HEIGHT | RO | N/A | Read this register to determine the Maximum field height. |
0x002C | NUM_HIST_BINS | RO | N/A | Read this register to determine the Number of histogram bins. |
0x0030 to 0x011F | - | - | - | Reserved |
Control, debugging, and statistics registers | ||||
0x0120 | IMG_INFO_WIDTH | RW | N/A | The expected width of the incoming video fields. |
0x0124 | IMG_INFO_HEIGHT | RW | N/A | The expected height of the incoming video fields. |
0x0128 to 0x013F | - | - | - | Reserved |
0x0140 | STATUS | RO | N/A | Read this register for information about the IP status. |
0x0144 | FRAME_STATS | RO | N/A | Read this register for some frame statistics. |
0x0148 | COMMIT | RW | N/A | Write any value to this register to submit changes to the control and region of interest registers. A pending commit request does not block Freeze Statistics Request of the CONTROL register, which the IP samples continuously. |
0x014C | CONTROL | RW | N/A | Control bits and fields of the IP. |
0x0150 | H_START | RW | N/A | Region of interest horizontal start value. |
0x0154 | V_START | RW | N/A | Region of interest vertical start value. |
0x0158 | H_END | RW | N/A | Region of interest horizontal end value. |
0x015c | V_END | RW | N/A | Region of interest vertical end value. |
0x0160 to 0x01FF | - | - | - | Reserved. |
0x0200 to 0x0200 + 4 x NUM_HIST_BINS - 1 |
FRAME_STATISTICS | RO | N/A | Histogram statistics calculated across the whole frame. The IP stores Number of histogram bins linearly starting from bin index 0 across the range of the registers. |
0x0200 + 4 x NUM_HIST_BINS to 0x0200 + 8 x NUM_HIST_BINS - 1 |
ROI_STATISTICS | RO | N/A | Histogram statistics calculated inside the region of interest. The IP stores Number of histogram bins linearly starting from bin index 0 across the range of the registers. |
0x0200 + 8 x NUM_HIST_BINS to end of memory |
- | - | - | Reserved or not implemented. Reserved if the address is within the range of the memory-mapped control interface, otherwise not implemented |
Register Bit Descriptions
Name | Bits | Description |
---|---|---|
Reserved | 31:3 | Reserved. |
Stats are Frozen. | 2 | The IP sets this bit to indicate it stopped updating the statistics. |
Commit | 1 | Pending commit |
Running | 0 | When 1, the IP is processing data.. |
Name | Bits | Description |
---|---|---|
Reserved | 31:8 | Reserved. |
Checksum | 7:0 | A simple checksum of the frame. |
Name | Bits | Description |
---|---|---|
Freeze Statistics Request | 31 | Set this bit to 1 for the IP to start sampling a new set of histogram and frame statistics. The IP lowers the Stats are Frozen bit of the STATUS register as a response, and you need to poll Stats are Frozen bit until it is 1 before reding the statistics. The IP expects you to keep Freeze Statistics Request 1 until it raises Stats are Frozen. Set Freeze Statistics Request to 0 before starting over with a new sampling request. Deviation from this flow might result in unexpected IP behavior. |
Reserved | 30:0 | Reserved. Write 0. |
Name | Bits | Description |
---|---|---|
Reserved | 31:16 | Reserved. |
Position | 15:0 | Horizontal position of the first pixel in the region of interest. The IP starts counts the pixels from index 0. |
Name | Bits | Description |
---|---|---|
Reserved | 31:16 | Reserved. |
Position | 15:0 | Vertical position of the first line in the region of interest. The IP starts counts the pixels from index 0. |
Name | Bits | Description |
---|---|---|
Reserved | 31:16 | Reserved. |
Position | 15:0 | Horizontal position of the last pixel in the region of interest. The IP starts counts the pixels from index 0. |
Name | Bits | Description |
---|---|---|
Reserved | 31:16 | Reserved. |
Position | 15:0 | Vertical position of the last line in the region of interest. The IP starts counts the pixels from index 0. |
Registers are RW only if you also turn on Debug features, otherwise they are WO.