Achronix Speedster22i User Macro Guide Manuale Utente Scaricare il pdf (Pagina 44)

I/O Cells OPAD

Speedster Macro Cell Library

www.achronix.com PAGE 27

OPAD

Non-Registered Output Pad

din pad

OPAD

Figure 1-14: OPAD Logic Symbol

OPADisannon‐registeredoutputpad.

Table 1-30: Ports

Name Type Description

din Data input.

pad Device output pad. T

he data at the din input is driven to the pad output.

Table 1-31: Parameters

Parameter Defined Values Default Value

location

iostandard “LVCMOS18”

drive

slew

open_drain “true”, “false” “false”

pvt_comp “none”, “own” “none”

Table 1-32: Output Function Table

din pad

Verilog Instantiation Template

OPAD #(.location(""),

.iostandard("LVCMOS18"),

.drive("16"),

.slew("slow"),

.pvt_comp("none"))

instance_name (.din(user_din),

.pad(user_pad));

input

output

“<pad_location>” ““

See Table1‐1

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

“fast”, “slow” “slow”

1 2 ... 39 40 41 42 43 44 45 46 47 48 49 ... 223 224

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Achronix Speedster22i User Macro Guide Manuale Utente Pagina 44