Datasheet

637
32133D–11/2011
UC3D
29. Glue Logic Controller (GLOC)
Rev: 1.0.1.0
29.1 Features
• Glue logic for general purpose PCB design
• Programmable lookup table
• Up to four inputs supported per lookup table
• Optional filtering of output
29.2 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.
29.3 Block Diagram
Figure 29-1. GLOC Block Diagram
PERIPHERAL BUS
TRUTH
FILTER
OUT[0]
...
OUT[n]
FILTEN
IN[3:0]
…
IN[(4n+3):4n]
AEN
CLK_GLOC
GCLK