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Xilinx CPLD Libraries Guide

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Functional Categories<br />

Flip Flop<br />

Design Element Description<br />

FD Macro: D Flip-Flop<br />

FD16 Macro: Multiple D Flip-Flop<br />

FD16CE Macro: 16-Bit Data Register with Clock Enable and Asynchronous Clear<br />

FD16RE Macro: 16-Bit Data Register with Clock Enable and Synchronous Reset<br />

FD4 Macro: Multiple D Flip-Flop<br />

FD4CE Macro: 4-Bit Data Register with Clock Enable and Asynchronous Clear<br />

FD4RE Macro: 4-Bit Data Register with Clock Enable and Synchronous Reset<br />

FD8 Macro: Multiple D Flip-Flop<br />

FD8CE Macro: 8-Bit Data Register with Clock Enable and Asynchronous Clear<br />

FD8RE Macro: 8-Bit Data Register with Clock Enable and Synchronous Reset<br />

FDC Macro: D Flip-Flop with Asynchronous Clear<br />

FDCE Primitive: D Flip-Flop with Clock Enable and Asynchronous Clear<br />

FDCP Primitive: D Flip-Flop with Asynchronous Preset and Clear<br />

FDCPE Primitive: D Flip-Flop with Clock Enable and Asynchronous Preset and Clear<br />

FDD Macro: Dual Edge Triggered D Flip-Flop<br />

FDD16 Macro: Multiple Dual Edge Triggered D Flip-Flop<br />

FDD16CE Macro: 16-Bit Dual Edge Triggered Data Register with Clock Enable and Asynchronous<br />

Clear<br />

FDD16RE Macro: 16-Bit Dual Edge Triggered Data Register with Clock Enable and Synchronous<br />

Reset<br />

FDD4 Macro: Multiple Dual Edge Triggered D Flip-Flop<br />

FDD4CE Macro: 4-Bit Dual Edge Triggered Data Register with Clock Enable and Asynchronous<br />

Clear<br />

FDD4RE Macro: 4-Bit Dual Edge Triggered Data Register with Clock Enable and Synchronous<br />

Reset<br />

FDD8 Macro: Multiple Dual Edge Triggered D Flip-Flop<br />

FDD8CE Macro: 8-Bit Dual Edge Triggered Data Register with Clock Enable and Asynchronous<br />

Clear<br />

FDD8RE Macro: 8-Bit Dual Edge Triggered Data Register with Clock Enable and Synchronous<br />

Reset<br />

FDDC Macro: D Dual Edge Triggered Flip-Flop with Asynchronous Clear<br />

FDDCE Primitive: Dual Edge Triggered D Flip-Flop with Clock Enable and Asynchronous<br />

Clear<br />

FDDCP Primitive: Dual Edge Triggered D Flip-Flop Asynchronous Preset and Clear<br />

FDDCPE Macro: Dual Edge Triggered D Flip-Flop with Clock Enable and Asynchronous Preset<br />

and Clear<br />

FDDP Macro: Dual Edge Triggered D Flip-Flop with Asynchronous Preset<br />

FDDPE Primitive: Dual Edge Triggered D Flip-Flop with Clock Enable and Asynchronous<br />

Preset<br />

FDDR Macro: Dual Edge Triggered D Flip-Flop with Synchronous Reset<br />

<strong>CPLD</strong> <strong>Libraries</strong> <strong>Guide</strong><br />

ISE 10.1 www.xilinx.com 9

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