UberDDR3/example_demo/orangecrab_ecp5/clk_wiz_ecppll.v

62 lines
1.7 KiB
Verilog

// diamond 3.7 accepts this PLL
// diamond 3.8-3.9 is untested
// diamond 3.10 or higher is likely to abort with error about unable to use feedback signal
// cause of this could be from wrong CPHASE/FPHASE parameters
module clk_wiz
(
input reset, // 0:inactive, 1:reset
input CLKI, // 48 MHz, 0 deg
output CLKOP, // 160 MHz, 0 deg
output CLKOS, // 160 MHz, 90 deg
output CLKOS2, // 40 MHz, 0 deg
output locked
);
(* FREQUENCY_PIN_CLKI="48" *)
(* FREQUENCY_PIN_CLKOP="160" *)
(* FREQUENCY_PIN_CLKOS="160" *)
(* FREQUENCY_PIN_CLKOS2="40" *)
(* ICP_CURRENT="12" *) (* LPF_RESISTOR="8" *) (* MFG_ENABLE_FILTEROPAMP="1" *) (* MFG_GMCREF_SEL="2" *)
EHXPLLL #(
.PLLRST_ENA("ENABLED"),
.INTFB_WAKE("DISABLED"),
.STDBY_ENABLE("DISABLED"),
.DPHASE_SOURCE("DISABLED"),
.OUTDIVIDER_MUXA("DIVA"),
.OUTDIVIDER_MUXB("DIVB"),
.OUTDIVIDER_MUXC("DIVC"),
.OUTDIVIDER_MUXD("DIVD"),
.CLKI_DIV(3),
.CLKOP_ENABLE("ENABLED"),
.CLKOP_DIV(4),
.CLKOP_CPHASE(2),
.CLKOP_FPHASE(0),
.CLKOS_ENABLE("ENABLED"),
.CLKOS_DIV(4),
.CLKOS_CPHASE(3),
.CLKOS_FPHASE(0),
.CLKOS2_ENABLE("ENABLED"),
.CLKOS2_DIV(16),
.CLKOS2_CPHASE(2),
.CLKOS2_FPHASE(0),
.FEEDBK_PATH("CLKOP"),
.CLKFB_DIV(10)
) pll_i (
.RST(reset),
.STDBY(1'b0),
.CLKI(CLKI),
.CLKOP(CLKOP),
.CLKOS(CLKOS),
.CLKOS2(CLKOS2),
.CLKFB(CLKOP),
.CLKINTFB(),
.PHASESEL0(1'b0),
.PHASESEL1(1'b0),
.PHASEDIR(1'b1),
.PHASESTEP(1'b1),
.PHASELOADREG(1'b1),
.PLLWAKESYNC(1'b0),
.ENCLKOP(1'b0),
.LOCK(locked)
);
endmodule