Achronix Speedster22i User Macro Guide Manual do Utilizador descarregar pdf (Página 55)

I/O Cells OPAD_DIFFD

Speedster Macro Cell Library

www.achronix.com PAGE 38

Table 1-43: Parameters

Parameter Defined Values Default Value

locationp

locationn

iostandard “LVDS”

drive

rstmode

rstvalue

slew

open_drain “true”, “false” “false”

pvt_comp “none”, “own” “none”

invert_out “off ”, ”on” “off ”

Table 1-44: Output Function Table (rstmode = “async”)

din data_en oe rstn clk pad padn

Table 1-45: Output Function Table (rstmode = “sync”)

din data_en oe rstn clk pad padn

Verilog Instantiation Template

IOPAD_DIFFD #(.locationp(""),

.locationn(""),

.iostandard("LVDS"),

.drive("16"),

.rstmode("async"),

.rstvalue("low"),

.slew("slow"),

.invert_out("off"),

.open_drain("false"),

.pvt_comp("none"))

instance_name (.pad(user_pad), .padn(user_padn)

.din(user_din), .oe(user_oe), .data_en(user_data_en),

.rstn(user_rstn), .clk(user_clk));

“<pad_location>” ““

See Table1‐2

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

“sync”, “async” “async”

“low”, “high” “low”

“fast”, “slow” “slow”

XXX0

X1 Hold previous data Hold previous data

X101 ZZ

0111 01

1111 10

X101 ZZ

XXX0 ZZ

X1 Hold previous data Hold previous data

X101 ZZ

0111 01

1111 10

X101 ZZ

1 2 ... 50 51 52 53 54 55 56 57 58 59 60 ... 223 224

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