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Novice
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what is "fifo_out_csr_address" input in Avalon FIFO Memory ip?

what is "fifo_out_csr_address" input in Avalon FIFO Memory ip?​

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Moderator
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HI,

 

Is there any possible screenshot of the system design that show that signal for better investigation

 

Thanks,

Regards

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Novice
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Here is the qsys system picture attached. and the module instantiation of qsys system. You can see (fifo_0_out_csr_address) and (fifo_1_in_csr_address). Just wana know what are these ports? and these are input ports.

 

module soc_system ( input wire [2:0] fifo_1_in_csr_address, // fifo_1_in_csr.address input wire [2:0] fifo_0_out_csr_address, // fifo_0_out_csr.address   input wire clk_clk, // clk.clk output wire [15:0] fifo_0_out_readdata, // fifo_0_out.readdata input wire fifo_0_out_read, // .read input wire fifo_0_out_csr_read, // .read input wire [31:0] fifo_0_out_csr_writedata, // .writedata input wire fifo_0_out_csr_write, // .write output wire [31:0] fifo_0_out_csr_readdata, // .readdata input wire fifo_0_reset_out_reset_n, // fifo_0_reset_out.reset_n input wire [15:0] fifo_1_in_writedata, // fifo_1_in.writedata input wire fifo_1_in_write, // .write input wire fifo_1_in_csr_read, // .read input wire [31:0] fifo_1_in_csr_writedata, // .writedata input wire fifo_1_in_csr_write, // .write output wire [31:0] fifo_1_in_csr_readdata, // .readdata input wire fifo_1_reset_in_reset_n, // fifo_1_reset_in.reset_n inout wire hps_io_hps_io_sdio_inst_CMD, // hps_io.hps_io_sdio_inst_CMD inout wire hps_io_hps_io_sdio_inst_D0, // .hps_io_sdio_inst_D0 inout wire hps_io_hps_io_sdio_inst_D1, // .hps_io_sdio_inst_D1 output wire hps_io_hps_io_sdio_inst_CLK, // .hps_io_sdio_inst_CLK inout wire hps_io_hps_io_sdio_inst_D2, // .hps_io_sdio_inst_D2 inout wire hps_io_hps_io_sdio_inst_D3, // .hps_io_sdio_inst_D3 inout wire hps_io_hps_io_usb1_inst_D0, // .hps_io_usb1_inst_D0 inout wire hps_io_hps_io_usb1_inst_D1, // .hps_io_usb1_inst_D1 inout wire hps_io_hps_io_usb1_inst_D2, // .hps_io_usb1_inst_D2 inout wire hps_io_hps_io_usb1_inst_D3, // .hps_io_usb1_inst_D3 inout wire hps_io_hps_io_usb1_inst_D4, // .hps_io_usb1_inst_D4 inout wire hps_io_hps_io_usb1_inst_D5, // .hps_io_usb1_inst_D5 inout wire hps_io_hps_io_usb1_inst_D6, // .hps_io_usb1_inst_D6 inout wire hps_io_hps_io_usb1_inst_D7, // .hps_io_usb1_inst_D7 input wire hps_io_hps_io_usb1_inst_CLK, // .hps_io_usb1_inst_CLK output wire hps_io_hps_io_usb1_inst_STP, // .hps_io_usb1_inst_STP input wire hps_io_hps_io_usb1_inst_DIR, // .hps_io_usb1_inst_DIR input wire hps_io_hps_io_usb1_inst_NXT, // .hps_io_usb1_inst_NXT input wire hps_io_hps_io_uart0_inst_RX, // .hps_io_uart0_inst_RX output wire hps_io_hps_io_uart0_inst_TX, // .hps_io_uart0_inst_TX output wire [14:0] memory_mem_a, // memory.mem_a output wire [2:0] memory_mem_ba, // .mem_ba output wire memory_mem_ck, // .mem_ck output wire memory_mem_ck_n, // .mem_ck_n output wire memory_mem_cke, // .mem_cke output wire memory_mem_cs_n, // .mem_cs_n output wire memory_mem_ras_n, // .mem_ras_n output wire memory_mem_cas_n, // .mem_cas_n output wire memory_mem_we_n, // .mem_we_n output wire memory_mem_reset_n, // .mem_reset_n inout wire [31:0] memory_mem_dq, // .mem_dq inout wire [3:0] memory_mem_dqs, // .mem_dqs inout wire [3:0] memory_mem_dqs_n, // .mem_dqs_n output wire memory_mem_odt, // .mem_odt output wire [3:0] memory_mem_dm, // .mem_dm input wire memory_oct_rzqin, // .oct_rzqin input wire reset_reset_n // reset.reset_n );

intelforum.JPG

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Moderator
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Hi Atif,

 

That port is an interface of avalon-mm slave that can be used to implement read and write interfaces for master and slave components. The following are examples of components that typically include memory-mapped interfaces and in your case is avalon fifo memory.

 

• Microprocessors

• Memories

• UARTs

• DMAs

• Timers

 

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