Achronix Speedster22i User Macro Guide User Manual download pdf (Page 16)

Cell Naming Conventions

Speedster Macro Cell Library

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Cell Naming Conventions

DFFNER

Reset

R–Reset(haspriorityoverenable)

S–Set(haspriorityoverenable)

C–Clear(enablehaspriority)

P–Preset(enablehaspriority)

Blank–Noresetinput

Enable

E–Enableinput

blank–Noenableinput

ClockEdge

Blank–Positive‐edgeregister

N–Negative‐edgeregister

CellType

DFF–D‐typeregister

I/O Cell Naming Conventions

IOPAD_DIFFD_DL

D–Positive‐edgeregister

D2–DDRRegister

Blank–Non‐registered

InputMode

Blank–SingleendedI/O

DIFF–DifferentialI/O

I/OType

IPAD–inpu tpad

OPAD–outputpad

TPAD–outputpadwithtristateenable

IOPAD–bidirectionalpad

D2H–DDRRegisterwithHalf‐rateinterface

DelayMode

Blank‐NoDelayLine

DL‐ProgrammableDelayLine

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Achronix Speedster22i User Macro Guide User Manual Page 16