Files
fluxengine/FluxEngine.cydsn/FIFOout/FIFOout.v
David Given 072a097003 Archival (non-functioning) checkin of Verilog-based sampler code. Sadly, we've
run into size limits for the device, and I need to slim down.
2019-12-11 22:51:27 +01:00

169 lines
6.8 KiB
Verilog

//`#start header` -- edit after this line, do not edit this line
`include "cypress.v"
//`#end` -- edit above this line, do not edit this line
// Generated on 11/16/2017 at 15:44
// Component: FIFOout
module FIFOout (
input req,
input clk,
output [7:0] d,
output drq,
output empty,
output ack
);
//`#start body` -- edit after this line, do not edit this line
/* Reads from the FIFO are done based on the FIFO being not empty. */
wire [7:0] po;
assign d = po;
localparam STATE_WAIT = 1'b0;
localparam STATE_READ = 1'b1;
reg state;
reg oldreq;
assign ack = (state != STATE_READ);
always @(posedge clk)
begin
case (state)
STATE_WAIT:
begin
if (!empty)
begin
if (req && !oldreq)
begin
state <= STATE_READ;
end
oldreq <= req;
end
end
STATE_READ:
begin
state <= STATE_WAIT;
end
endcase
end
cy_psoc3_dp #(.cy_dpconfig(
{
`CS_ALU_OP_PASS, `CS_SRCA_A0, `CS_SRCB_D0,
`CS_SHFT_OP_PASS, `CS_A0_SRC_NONE, `CS_A1_SRC_NONE,
`CS_FEEDBACK_DSBL, `CS_CI_SEL_CFGA, `CS_SI_SEL_CFGA,
`CS_CMP_SEL_CFGA, /*CFGRAM0: STATE_WAITFORREQ*/
`CS_ALU_OP_PASS, `CS_SRCA_A0, `CS_SRCB_D0,
`CS_SHFT_OP_PASS, `CS_A0_SRC___F0, `CS_A1_SRC_NONE,
`CS_FEEDBACK_DSBL, `CS_CI_SEL_CFGA, `CS_SI_SEL_CFGA,
`CS_CMP_SEL_CFGA, /*CFGRAM1: STATE_LOAD*/
`CS_ALU_OP_PASS, `CS_SRCA_A0, `CS_SRCB_D0,
`CS_SHFT_OP_PASS, `CS_A0_SRC_NONE, `CS_A1_SRC_NONE,
`CS_FEEDBACK_DSBL, `CS_CI_SEL_CFGA, `CS_SI_SEL_CFGA,
`CS_CMP_SEL_CFGA, /*CFGRAM2: */
`CS_ALU_OP_PASS, `CS_SRCA_A0, `CS_SRCB_D0,
`CS_SHFT_OP_PASS, `CS_A0_SRC_NONE, `CS_A1_SRC_NONE,
`CS_FEEDBACK_DSBL, `CS_CI_SEL_CFGA, `CS_SI_SEL_CFGA,
`CS_CMP_SEL_CFGA, /*CFGRAM3: */
`CS_ALU_OP_PASS, `CS_SRCA_A0, `CS_SRCB_D0,
`CS_SHFT_OP_PASS, `CS_A0_SRC_NONE, `CS_A1_SRC_NONE,
`CS_FEEDBACK_DSBL, `CS_CI_SEL_CFGA, `CS_SI_SEL_CFGA,
`CS_CMP_SEL_CFGA, /*CFGRAM4: */
`CS_ALU_OP_PASS, `CS_SRCA_A0, `CS_SRCB_D0,
`CS_SHFT_OP_PASS, `CS_A0_SRC_NONE, `CS_A1_SRC_NONE,
`CS_FEEDBACK_DSBL, `CS_CI_SEL_CFGA, `CS_SI_SEL_CFGA,
`CS_CMP_SEL_CFGA, /*CFGRAM5: */
`CS_ALU_OP_PASS, `CS_SRCA_A0, `CS_SRCB_D0,
`CS_SHFT_OP_PASS, `CS_A0_SRC_NONE, `CS_A1_SRC_NONE,
`CS_FEEDBACK_DSBL, `CS_CI_SEL_CFGA, `CS_SI_SEL_CFGA,
`CS_CMP_SEL_CFGA, /*CFGRAM6: */
`CS_ALU_OP_PASS, `CS_SRCA_A0, `CS_SRCB_D0,
`CS_SHFT_OP_PASS, `CS_A0_SRC_NONE, `CS_A1_SRC_NONE,
`CS_FEEDBACK_DSBL, `CS_CI_SEL_CFGA, `CS_SI_SEL_CFGA,
`CS_CMP_SEL_CFGA, /*CFGRAM7: */
8'hFF, 8'h00, /*CFG9: */
8'hFF, 8'hFF, /*CFG11-10: */
`SC_CMPB_A1_D1, `SC_CMPA_A1_D1, `SC_CI_B_ARITH,
`SC_CI_A_ARITH, `SC_C1_MASK_DSBL, `SC_C0_MASK_DSBL,
`SC_A_MASK_DSBL, `SC_DEF_SI_0, `SC_SI_B_DEFSI,
`SC_SI_A_DEFSI, /*CFG13-12: */
`SC_A0_SRC_ACC, `SC_SHIFT_SL, 1'h0,
1'h0, `SC_FIFO1_BUS, `SC_FIFO0_BUS,
`SC_MSB_DSBL, `SC_MSB_BIT0, `SC_MSB_NOCHN,
`SC_FB_NOCHN, `SC_CMP1_NOCHN,
`SC_CMP0_NOCHN, /*CFG15-14: */
10'h00, `SC_FIFO_CLK__DP,`SC_FIFO_CAP_AX,
`SC_FIFO_LEVEL,`SC_FIFO_ASYNC,`SC_EXTCRC_DSBL,
`SC_WRK16CAT_DSBL /*CFG17-16: */
}
)) dp(
/* input */ .reset(1'b0),
/* input */ .clk(clk),
/* input [02:00] */ .cs_addr({2'b0, state}),
/* input */ .route_si(1'b0),
/* input */ .route_ci(1'b0),
/* input */ .f0_load(1'b0),
/* input */ .f1_load(1'b0),
/* input */ .d0_load(1'b0),
/* input */ .d1_load(1'b0),
/* output */ .ce0(),
/* output */ .cl0(),
/* output */ .z0(),
/* output */ .ff0(),
/* output */ .ce1(),
/* output */ .cl1(),
/* output */ .z1(),
/* output */ .ff1(),
/* output */ .ov_msb(),
/* output */ .co_msb(),
/* output */ .cmsb(),
/* output */ .so(),
/* output */ .f0_bus_stat(drq), // not full
/* output */ .f0_blk_stat(empty), // empty
/* output */ .f1_bus_stat(),
/* output */ .f1_blk_stat(),
/* input */ .ci(1'b0), // Carry in from previous stage
/* output */ .co(),// Carry out to next stage
/* input */ .sir(1'b0), // Shift in from right side
/* output */ .sor(), // Shift out to right side
/* input */ .sil(1'b0), // Shift in from left side
/* output */ .sol(), // Shift out to left side
/* input */ .msbi(1'b0), // MSB chain in
/* output */ .msbo(), // MSB chain out
/* input [01:00] */ .cei(2'b0), // Compare equal in from prev stage
/* output [01:00] */ .ceo(), // Compare equal out to next stage
/* input [01:00] */ .cli(2'b0), // Compare less than in from prv stage
/* output [01:00] */ .clo(), // Compare less than out to next stage
/* input [01:00] */ .zi(2'b0), // Zero detect in from previous stage
/* output [01:00] */ .zo(), // Zero detect out to next stage
/* input [01:00] */ .fi(2'b0), // 0xFF detect in from previous stage
/* output [01:00] */ .fo(), // 0xFF detect out to next stage
/* input [01:00] */ .capi(2'b0), // Software capture from previous stage
/* output [01:00] */ .capo(), // Software capture to next stage
/* input */ .cfbi(1'b0), // CRC Feedback in from previous stage
/* output */ .cfbo(), // CRC Feedback out to next stage
/* input [07:00] */ .pi(8'b0), // Parallel data port
/* output [07:00] */ .po(po) // Parallel data port
);
//`#end` -- edit above this line, do not edit this line
endmodule
//`#start footer` -- edit after this line, do not edit this line
//`#end` -- edit above this line, do not edit this line