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OPAD, 4, 8, 16

Single- and Multiple-Output Pads

Element
XC3000
XC4000E
XC4000X
XC5200
XC9000
Spartan
SpartanXL
Virtex
OPAD
Primitive
Primitive
Primitive
Primitive
Primitive
Primitive
Primitive
Primitive
OPAD4,
OPAD8,
OPAD16
Macro
Macro
Macro
Macro
Macro
Macro
Macro
Macro

figures/x3829n.gif

figures/x3839n.gif

figures/x3842n.gif

figures/x3846n.gif

OPAD, OPAD4, OPAD8, and OPAD16 are single and multiple output pads. An OPAD connects a device pin to an output signal of a PLD. It is internally connected to an input/output block (IOB), which is configured by the software as an OBUF, an OBUFT, an OBUFE, an OFD, or an OFDT.

Refer to the appropriate CAE tool interface user guide for details on assigning pin location and identification.

Figure 8.47 OPAD8 Implementation XC3000, XC4000, XC5200, XC9000, Spartans, Virtex

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