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-- ***************************************************
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-- ***************************************************
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-- File: hibi_dct.vhd
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-- File: hibi_dct.vhd
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-- Creation date: 12.02.2013
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-- Creation date: 25.03.2013
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-- Creation time: 10:33:28
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-- Creation time: 13:53:33
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-- Description: DCT to Hibi. Connects dctQidct block to HIBI Wrapper
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-- Description: This block combines dct to hibi dctQidct block together
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--
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--
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-- DCT_TO_HIBI Connects dctQidct block to HIBI Wrapper
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--
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--
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-- Input:
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-- Input:
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-- 1. Two address to send the results to (one for quant, one for idct)
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-- 1. Address to send the results to quant
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-- 2. Address to send the results to idct (set unused address if you don't use this)
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-- 2. Control word for the current macroblock
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-- 2. Control word for the current macroblock
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-- Control word structure: bit 6: chroma(1)/luma(0), 5: intra(1)/inter(0),
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-- Control word structure: bit 6: chroma(1)/luma(0) NOT USED,
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-- 5: intra(1)/inter(0),
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-- 4..0: quantizer parameter (QP)
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-- 4..0: quantizer parameter (QP)
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-- 3. Then the DCT data ( 8x8x6 x 16-bit values = 384 x 16 bit )
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-- 3. Then the DCT data ( 8x8x6 x 16-bit values = 384 x 16 bit )
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--
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--
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-- Chroma/luma: 4 luma, 2 chroma
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-- Only 9b DCT data values are supported currently.
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-- Send two DCT-values packed to upper and lower 16bits in the sigle hibi transmission.
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--
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-- <31------------------16--------------------0> BIT index
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-- DCT_DATA_1 DCT_DATA_0 DATA
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--
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--
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-- NOTE: If self release is used (use_self_rel_g=1) user gets the signal that dct_to_hibi is ready to receive data.
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-- By default self release is disabled and you user can send data to dct_to_hibi after quant results are received.
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--
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--
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--
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-- Outputs:
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-- Outputs:
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-- Outputs are 16-bit words which are packed up to hibi. If hibi width is
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-- Outputs are 16-bit words which are packed up to hibi. If hibi width is
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-- 32b, then 2 16-bit words are combined into one hibi word.
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-- 32b, then 2 16-bit words are combined into one hibi word.
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-- 01. quant results: 1. 8*8 x 16bit values to quant result address
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-- 01. quant results: 1. 8*8 x 16bit values to quant result address
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signal dct_to_hibi_0_dct_if_to_dctqidct_0_dct_ifWR_IDCT_FROM_ACC : std_logic;
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signal dct_to_hibi_0_dct_if_to_dctqidct_0_dct_ifWR_IDCT_FROM_ACC : std_logic;
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signal dct_to_hibi_0_dct_if_to_dctqidct_0_dct_ifWR_QUANT_FROM_ACC : std_logic;
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signal dct_to_hibi_0_dct_if_to_dctqidct_0_dct_ifWR_QUANT_FROM_ACC : std_logic;
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-- DCT to Hibi. Connects dctQidct block to HIBI Wrapper
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-- DCT to Hibi. Connects dctQidct block to HIBI Wrapper
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--
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--
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--
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-- Input:
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-- Input:
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-- 1. Two address to send the results to (one for quant, one for idct)
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-- 1. Address to send the results to quant
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-- 2. Address to send the results to idct (set unused address if you don't use this)
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-- 2. Control word for the current macroblock
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-- 2. Control word for the current macroblock
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-- Control word structure: bit 6: chroma(1)/luma(0), 5: intra(1)/inter(0),
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-- Control word structure: bit 6: chroma(1)/luma(0) (NOT USED),
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-- 5: intra(1)/inter(0),
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-- 4..0: quantizer parameter (QP)
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-- 4..0: quantizer parameter (QP)
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-- 3. Then the DCT data ( 8x8x6 x 16-bit values = 384 x 16 bit )
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-- 3. Then the DCT data ( 8x8x6 x 16-bit values = 384 x 16 bit )
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--
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--
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-- Chroma/luma: 4 luma, 2 chroma
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-- Only 9b DCT data values are supported currently.
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-- Send two DCT-values packed to upper and lower 16bits in the sigle hibi transmission.
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--
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-- <31------------------16--------------------0> BIT index
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-- DCT_DATA_1 DCT_DATA_0 DATA
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--
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--
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-- NOTE: If self release is used (use_self_rel_g=1) user gets the signal that dct_to_hibi is ready to receive data.
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-- By default self release is disabled and you user can send data to dct_to_hibi after quant results are received.
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--
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--
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--
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-- Outputs:
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-- Outputs:
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-- Outputs are 16-bit words which are packed up to hibi. If hibi width is
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-- Outputs are 16-bit words which are packed up to hibi. If hibi width is
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-- 32b, then 2 16-bit words are combined into one hibi word.
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-- 32b, then 2 16-bit words are combined into one hibi word.
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-- 01. quant results: 1. 8*8 x 16bit values to quant result address
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-- 01. quant results: 1. 8*8 x 16bit values to quant result address
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debug_w_g : integer := 1;
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debug_w_g : integer := 1;
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idct_width_g : integer := 9; -- Data width after IDCT(9b)
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idct_width_g : integer := 9; -- Data width after IDCT(9b)
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own_address_g : integer := 0; -- Used for self-release
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own_address_g : integer := 0; -- Used for self-release
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quant_width_g : integer := 8; -- Quantizated data width(8b)
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quant_width_g : integer := 8; -- Quantizated data width(8b)
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rtm_address_g : integer := 0; -- Used for self-release
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rtm_address_g : integer := 0; -- Used for self-release
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use_self_rel_g : integer := 1 -- Does it release itself from RTM?
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use_self_rel_g : integer := 0 -- Does it release itself from RTM?
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);
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);
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port (
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port (
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-- Interface: clk
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-- Interface: clk
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