PIC18F4515-E/PT Microchip Technology, PIC18F4515-E/PT Datasheet - Page 7

• Manufacturer Part Number: PIC18F4515-E/PT
• Description: IC MCU FLASH 24KX16 44TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F4515-E/PT

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, HLVD, POR, PWM, WDT
• Number Of I /o: 36
• Program Memory Size: 48KB (24K x 16)
• Program Memory Type: FLASH
• Ram Size: 3.8K x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 13x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 44-TQFP, 44-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

EXAMPLE 3:
© 2007 Microchip Technology Inc.
2. C Language Programming: The exact work
#pragma interruptlow MyLowISR
void MyLowISR(void)
{
}
// Although MyHighISR is a high priority interrupt, use interruptlow pragma so that
// the compiler will not use retfie FAST.
#pragma interruptlow MyHighISR
void MyHighISR(void)
{
}
#pragma code highVector=0x08
void HighVector (void)
{
}
#pragma code /* return to default code section */
#pragma code lowVector=0x18
void LowVector (void)
{
}
#pragma code /* return to default code section */
around depends on the compiler in use. Please
refer to your C compiler documentation for
details.
If using the Microchip MPLAB
piler, define both high and low priority interrupt
handler functions as “low priority” by using the
pragma interruptlow directive. This direc-
tive instructs the compiler to not use the
RETFIE FAST instruction. If the proper high
priority interrupt bit is set in the IPRx register,
// Handle low priority interrupts.
// Handle high priority interrupts.
_asm goto MyHighISR _endasm
_asm goto MyLowISR _endasm
®
C18 C Com-
PIC18F2515/2610/4515/4610
Date Codes that pertain to this issue:
All engineering and production devices.
then the interrupt is treated as high priority in
spite
directive.
The code segment shown in Example 3
demonstrates the work around using the C18
compiler:
of
the
pragma interruptlow
DS80199E-page 7