The Configurable Logic Cell (CLC) module provides
programmable logic that operates outside the speed limitations of software execution.
The logic cell takes up to 256 input signals and, through the use of configurable gates,
reduces those inputs to four logic lines that drive one of eight selectable
single-output logic functions.
Input sources are a combination of the following:
- I/O pins
- Internal
clocks
- Peripherals
- Register
bits
The output can be directed internally to peripherals and to an output pin.
The following figure is a simplified diagram showing
signal flow through the CLC. Possible configurations include:
- Combinatorial
Logic
- AND
- NAND
- AND-OR
- AND-OR-INVERT
- OR-XOR
- OR-XNOR
- Latches
- SR
- Clocked D with Set and Reset
- Transparent D with Set and Reset
Figure 1. CLC
Simplified Block Diagram
Notes:
- 1.See Figure 1 for input data selection and gating.
- 2.See Figure 1 for programmable logic functions.