SLG46170 datasheet(40/87 Pages) DIALOG

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000-0046170-103

Page 39 of 86

SLG46170

9.3 4-Bit LUT

The one 4-bit LUT takes in four input signals from the connection matrix and produces a single output, which goes back into the

connection matrix.

The 4-bit LUT uses a 16-bit register signal to define the output function;

4-Bit LUT0 is defined by reg<692:677>

The table below shows the register bits for the standard digital logic devices (AND, NAND, OR, NOR, XOR, XNOR) that can be

created within the 4-bit LUT logic cell.

Figure 8. 2-bit LUTs

Table 41. 4-bit LUT0 Truth Table.

IN3

IN2

IN1

IN0

OUT

reg <677>

reg <678>

reg <679>

reg <680>

reg <681>

reg <682>

reg <683>

reg <684>

reg <685>

reg <686>

reg <687>

reg <688>

reg <689>

reg <690>

reg <691>

reg <692>

Table 42. 4-bit LUT Standard Digital Functions.

Function

MSB

LSB

AND-4

000

NAND-4

111

OR-4

111

110

NOR-4

000

001

XOR-4

101

001

110

XNOR-4

010

110

001

4-bit LUT9 OUT

IN1

IN0

reg <692:677>

From Connection

Matrix Output <35>

From Connection

Matrix Output <36>

To Connection

Matrix Input <25>

IN2

From Connection

Matrix Output <37>

IN3

From Connection

Matrix Output <38>

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