SAM4L Datasheet, PDF (955/1185 Pages) ATMEL Corporation – ATSAM ARM-based Flash MCU

ATSAM4L4/L2
36. Glue Logic Controller (GLOC)
Rev: 1.0.2.0
36.1 Features
• Glue logic for general purpose PCB design
• Programmable lookup table
• Up to four inputs supported per lookup table
• Optional filtering of output
36.2 Overview
The Glue Logic Controller (GLOC) contains programmable logic which can be connected to the
device pins. This allows the user to eliminate logic gates for simple glue logic functions on the
PCB.
The GLOC consists of a number of lookup table (LUT) units. Each LUT can generate an output
as a user programmable logic expression with four inputs. Inputs can be individually masked.
The output can be combinatorially generated from the inputs, or filtered to remove spikes.
36.3 Block Diagram
Figure 36-1. GLOC Block Diagram
42023C–SAM–02/2013
GCLK
CLK_GLOC
FILTER
FILTEN
OUT[0]
...
OUT[n]
AEN
IN[3:0]
…
IN[(4n+3):4n]
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