Achronix Speedster22i User Macro Guide Uživatelský manuál stáhnout pdf (Strana 47)

I/O Cells OPAD_D

Speedster Macro Cell Library

www.achronix.com PAGE 30

Table 1-34: Parameters

Parameter Defined Values Default Value

location

iostandard “LVCMOS18”

drive

rstmode

rstvalue

slew

open_drain “true”, “false” “false”

pvt_comp “none”, “own” “none”

Table 1-35: Output Function Table (rstmode = “async”)

din data_en rstn clk pad

Table 1-36: Output Function Table (rstmode = “sync”)

din data_en rstn clk pad

Verilog Instantiation Template

OPAD_D #(.location(""),

.iostandard("LVCMOS18"),

.drive("16"),

.rstmode("async"),

.rstvalue("low"),

.slew("slow"),

.open_drain("false"),

.pvt_comp("none"))

instance_name (.pad(user_pad), .din(user_din), .data_en(user_data_en),

.rstn(user_rstn), .clk

(user_clk));

“<pad_location>” ““

See Table1‐1

"2", "4", "6", "8", "12", "16" "16"

“sync”, “async” “async”

“low”, “high” “low”

“fast”, “slow” “slow”

01 1 0

1 1

01 1 0

1 1

1 2 ... 42 43 44 45 46 47 48 49 50 51 52 ... 223 224

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Achronix Speedster22i User Macro Guide Uživatelský manuál Strana 47