Achronix Speedster22i User Macro Guide - Manual (Page 50)

I/O Cells OPAD_D2
Speedster Macro Cell Library www.achronix.com PAGE 33
Table 1-38: Parameters
Parameter Defined Values Default Value
location
iostandard “LVCMOS18”
drive
rstmode
rstvalue
slew
keepmode
hysteresis
open_drain “true”, “false” “false”
pvt_comp “none”, “own” “none”
odt “off”, “on” “off”
termination “50”, “60”, “75”, “100”, “120”, “240” “50”
Figure 1-17: OPAD_D2 Output Timing Diagram (assumes data_en = 1’b1)
Verilog Instantiation Template
OPAD_D2 #(.location(""),
.iostandard("LVCMOS18"),
.drive("16"),
.rstmode("async"),
.rstvalue("low"),
.slew("slow"),
.open_drain("false"),
.pvt_comp("none"))
instance_name (.pad(user_pad), .dina(user_dina), .dinb(user_dinb),
.data_en(user_data_en), .rstn(user_rstn), .clk(user_clk));
“” ““
See Table 1‐1
"2", "4", "6", "8", "12", "16" "16"
“sync”, “async” “async”
“low”, “high” “low”
“fast”, “slow” “slow”
"pullup", "pulldown", "none" “none”
"none", "schmitt" “none”
clk
dina
dinb
pad