PIC18C658-E/PT Microchip Technology, PIC18C658-E/PT Datasheet - Page 188

• Manufacturer Part Number: PIC18C658-E/PT
• Description: IC MCU OTP 16KX16 CAN 64TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Cr

Specifications of PIC18C658-E/PT

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: CAN, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 52
• Program Memory Size: 32KB (16K x 16)
• Program Memory Type: OTP
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 64-TFQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Other names: PIC18C658E/PT

PIC18CXX8
RXB0Interrupt
AccessBuffer
DS30475A-page 188
bcf
goto
; Copy CANCON.ICODE bits to CANSTAT.WIN bits
movf
andlw
movwf
movf
andlw
iorwf
movff
; Access current buffer…
; Your code
; Restore CANCON.WIN bits
movf
andlw
iorwf
; Do not need to restore CANSTAT - it is read-only register.
; Return from interrupt or check for another module interrupt source
PIR3, RXB0IF
AccessBuffer
TempCANCON, W
b’11110001’
TempCANCON
TempCANSTAT, W
b’00001110’
TempCANCON
TempCANCON, CANCON
CANCON, W
b’11110001’
TempCANCON
Advanced Information
; Clear the interrupt flag
; This is either TX or RX interrupt
; Clear CANCON.WIN bits before copying
; new ones.
; Use previously saved CANCON value to
; make sure same value.
; Copy masked value back to TempCANCON
; Retrieve ICODE bits
; Use previously saved CANSTAT value
; to make sure same value.
; Copy ICODE bits to WIN bits.
; Copy the result to actual CANCON
; Preserve current non WIN bits
; Restore original WIN bits
2000 Microchip Technology Inc.