SW006010 Microchip Technology, SW006010 Datasheet - Page 70

• Manufacturer Part Number: SW006010
• Description: MPLAB 17C SOFTWARE
• Manufacturer: Microchip Technology

Specifications of SW006010

• Tool Function: Compiler
• Tool Type: Compiler
• Processor Series: PIC17C
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• For Use With/related Products: MPLAB®
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

MPLAB
7.5
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USING SFRS
C17 C Compiler User’s Guide
There are three steps to follow when using SFR's in an application.
1. Include the processor header file for the appropriate device. This provides the
2. Access SFR's like any other C variables. The source code can write to and/or
3. Link with the register definition file or linker script for the appropriate device. The
See MPASM™ User's Guide with MPLINK™ and MPLIB™ (DS33014) for more
information on using linker scripts.
source code with the SFR's that are available for that device. For instance, the
following statement includes the header files for the PIC17C756A part:
#include <p17c756a.h>
read from the SFR's.
For example, the following statement clears all the bits to zero in the special
function register for Timer1.
TMR1 = 0;
This next statement represents the 0 bit in the TCON2 register which is the
1 on' bit. It sets the bit named
TCON2bits.TMR1ON = 1;
linker provides the addresses of the SFR's. (Remember the bit structure will have
the same address as the SFR at link time.) Example 7.1 would use:
p17c756a.lkr
TMR1ON
to
1
which starts the timer.
 2002 Microchip Technology Inc.
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Timer