Download Image Processing in Hardware - Department of Computer Engineering

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Table 4.5 Ports of Square Fetcher
Port Name
Size
Direction
[MSB:LSB]
(bits)
Based on
Description
Square
Fetcher
sf_clk
1
Input
33MHz Clock Signal
sf_rst_n
1
Input
Active-low Reset Signal
sf_en
1
Input
Enable Signal
sf_gnt
1
Input
If high, Square Fetcher gains control of
Memory Controller.
mc_done
1
Input
Done Signal from Memory Controller
img_width[9:0]
10
Input
Width of the Image
img_height[9:0]
10
Input
Height of the Image
ci_row[9:0]
10
Input
Row Index of the Window
ci_col[9:0]
10
Input
Column Index of the Window
img_addr[16:0]
17
Input
Starting Address of the Image
sf_req
1
Output
If high, Square Fetcher is requesting for
controlling of Memory Controller.
sf_done
1
Output
If high, Square Fetcher is done its
operation.
sb_wr_n
1
Output
Active-low Write Signal
If low, command Square Buffer to store
the data from sb_data_in to the address
specified by sb_wr_addr.
mc_en
1
Output
Enable Signal Memory Controller