Rainbow-electronics ATF20V8BQL Manual de usuario descargar pdf (Pagina 7)

ATF20V8B(Q)(L)

Note: 1. Only applicable for version 3.4 or lower.

ATF20V8B Registered Mode

PAL Device Emulation/PAL Replacement. The registered

mode is used if one or more registers are required. Each

macrocell can be configured as either a registered or com-

binatorial output or I/O, or as an input. For a registered out-

put or I/O, the output is enabled by the OE

pin, and the

allocated to the sum term. For a combinatorial output or

I/O, the output enable is controlled by a product term, and

seven product terms are allocated to the sum term. When

the macrocell is configured as an input, the output enable is

permanently disabled.

Any register usage will make the compiler select this mode.

The following registered devices can be emulated using

this mode:

20R8 20RP8

20R6 20RP6

20R4 20RP4

Registered Mode Operation

Compiler Mode Selection

Registered Complex Simple Auto Select

ABEL, Atmel-ABEL P20V8R P20V8C P20V8 P20V8

CUPL G20V8MS G20V8MA G20V8 G20V8A

LOG/iC GAL20V8_R

(1)

GAL20V8_C7

(1)

GAL20V8_C8

(1)

GAL20V8

OrCAD-PLD “Registered”“Complex”“Simple” GAL20V8

PLDesigner P20V8 P20V8 P20V8 P20V8

Tango-PLD G20V8 G20V8 G20V8 G20V8

1 2 3 4 5 6 7 8 9 10 11 12 ... 17 18

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Rainbow-electronics ATF20V8BQL Manual de usuario Pagina 7