Achronix Speedster22i User Macro Guide Bedienungsanleitung PDF herunterladen (Seite 37)

I/O Cells IPAD_DIFF

Speedster Macro Cell Library

www.achronix.com PAGE 20

IPAD_DIFF

Non-Registered Differential Input Pad

dout

pad

IPAD_DIFF

padn

Figure 1-10: IPAD_DIFF Logic Symbol

IOPAD is a non‐registered differential in

put pad with complementary input pads pad and

padnwithoutputdout.

Table 1-22: Ports

Name Type Description

pad Device pad.

padn

Complement Device pad. Th

e padn input must be driven with the logical

complement of the pad input.

dout Data output.

Table 1-23: Parameters

Parameter Defined Values Default Value

locationp

locationn

iostandard “LVDS”

pvt_comp “none”, “own” “none”

odt “off ”, “on” “off ”

termination “50”, “60”, “75”, “100”

, “120”, “240” “50”

Table 1-24: Input Function Table

pad padn dout

input

output

“<pad_location>” ““

See Table1‐2

00 X

10 1

11 X

ZZ X

1 2 ... 32 33 34 35 36 37 38 39 40 41 42 ... 223 224

Keine Kommentare

Achronix Speedster22i User Macro Guide Bedienungsanleitung Seite 37