F21 datasheet(277/416 Pages) MICROCHIP

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DS30010118D-page 277

PIC24FJ256GA705 FAMILY

23.0 CONFIGURABLE LOGIC CELL

(CLC) GENERATOR

The Configurable Logic Cell (CLC) module allows the

user to specify combinations of signals as inputs to a

logic function and to use the logic output to control

other peripherals or I/O pins. This provides greater

flexibility and potential in embedded designs, since the

CLC module can operate outside the limitations of

software execution and supports a vast amount of

output designs.

There are four input gates to the selected logic func-

tion. These four input gates select from a pool of up to

32 signals that are selected using four data source

selection multiplexers. Figure 23-1 shows an overview

of the module. Figure 23-3 shows the details of the data

source multiplexers and logic input gate connections.

FIGURE 23-1:

CLCx MODULE

Note:

This data sheet summarizes the features of

this group of PIC24F devices. It is not

intended to be a comprehensive reference

source. For more information, refer to

the “dsPIC33/PIC24 Family Reference

Manual”, “Configurable Logic Cell (CLC)”

(DS70005298), which is available from the

Microchip website (www.microchip.com).

The information in this data sheet

supersedes the information in the FRM.

Gate 1

Gate 2

Gate 3

Gate 4

Logic

Function

CLCx

LCOE

Logic

LCPOL

MODE<2:0>

CLCx

CLCIN[0]

CLCIN[1]

CLCIN[2]

CLCIN[3]

CLCIN[4]

CLCIN[5]

CLCIN[6]

CLCIN[7]

CLCIN[8]

CLCIN[9]

CLCIN[10]

CLCIN[11]

CLCIN[12]

CLCIN[13]

CLCIN[14]

CLCIN[15]

TRISx Control

Interrupt

det

INTP

INTN

LCEN

CLCxIF

Sets

Flag

Note:

All register bits shown in this figure can be found in the CLCxCONL register.

Output

CLCIN[16]

CLCIN[17]

CLCIN[18]

CLCIN[19]

CLCIN[20]

CLCIN[21]

CLCIN[22]

CLCIN[23]

CLCIN[24]

CLCIN[25]

CLCIN[26]

CLCIN[27]

CLCIN[28]

CLCIN[29]

CLCIN[30]

CLCIN[31]

See Figure 23-2

See Figure 23-3

Interrupt

det

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