SLG47503 datasheet(44/191 Pages) DIALOG

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Datasheet

16-Jul-2021

CFR0011-120-00

Revision 2.0

44 of 191

SLG47502/03

Low Voltage GreenPAK Programmable

Mixed-Signal Matrix

Preliminary

7.1.1 2-Bit LUT or D Flip-Flop Macrocell Used as 2-Bit LUT

This Macrocell, when programmed for a LUT function, uses a 4-bit register to define their output function:

2-Bit LUT0 is defined by registers [635:632]

2-Bit LUT1 is defined by registers [639:636]

2-Bit LUT2 is defined by registers [643:640]

Table 23 shows the register bits for the standard digital logic devices (AND, NAND, OR, NOR, XOR, XNOR) that can be created

within each of the 2-bit LUT logic cells.

7.2 2-BIT LUT OR PROGRAMMABLE PATTERN GENERATOR

The SLG47502/03 has one combination function macrocell that can serve as a logic or a timing function. This macrocell can serve

as a Look Up Table (LUT), or a Programmable Pattern Generator (PGen).

When used to implement LUT functions, the 2-bit LUT takes in two input signals from the connection matrix and produces a single

output, which goes back into the connection matrix. When used as a LUT to implement combinatorial logic functions, the outputs

of the LUT can be configured to any user defined function, including the following standard digital logic devices (AND, NAND,

OR, NOR, XOR, XNOR). The user can also define the combinatorial relationship between inputs and outputs to be any selectable

function.

It is possible to define the RST level for the PGen macrocell. There are both high level reset (RST) and a low level reset (nRST)

options available, which are selected by register [760]. When operating as the Programmable Pattern Generator, the output of

the macrocell will clock out a sequence of two to sixteen bits that are user selectable in their bit values, and user selectable in

the number of bits (up to sixteen) that are output before the pattern repeats.

Table 22: 2-bit LUT2_0 to 2-bit LUT2_2 Truth Table

IN1

IN0

OUT LUT0

OUT LUT1

OUT LUT2

632]

636]

640]

LSB

633]

637]

641]

634]

638]

642]

635]

639]

643]

MSB

Table 23: 2-bit LUT Standard Digital Functions

Function

MSB

LSB

AND-2

NAND-2

OR-2

NOR-2

XOR-2

XNOR-2

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