PIC18LF458-I/PT Microchip Technology, PIC18LF458-I/PT Datasheet - Page 233

• Manufacturer Part Number: PIC18LF458-I/PT
• Description: IC MCU CAN FLASH 16K LP 44-TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18LF458-I/PT

• Core Size: 8-Bit
• Program Memory Size: 32KB (16K x 16)
• Core Processor: PIC
• Speed: 40MHz
• Connectivity: CAN, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 33
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Controller Family/series: PIC18
• No. Of I/o's: 33
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 1.5KB
• Cpu Speed: 40MHz
• No. Of Timers: 4
• Package: 44TQFP
• Device Core: PIC
• Family Name: PIC18
• Maximum Speed: 40 MHz
• Operating Supply Voltage: 3.3|5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 33
• Interface Type: CAN/I2C/SPI/USART
• On-chip Adc: 8-chx10-bit
• Number Of Timers: 4
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

FIGURE 19-5:
© 2006 Microchip Technology Inc.
Move Message into RXB0
according to which Filter
Criteria was met
Set RXRDY = 1
Set FILHIT <0>
RXFUL = 0?
RXIE = 1?
INTERNAL MESSAGE RECEPTION FLOWCHART
Is
Is
Yes
No
The RXFUL bit determines if the
receive register is empty and able
to accept a new message.
No
Yes
Generate Overrun Error:
Generate
Frame
Error
RX0DBEN = 1?
Set RXB0OVFL
Yes, meets criteria
for RXBO
Is
The RXB0DBEN bit determines if
RXB0 can rollover into RXB1 if it is
full.
Set CANSTAT <3:0> according
No
to which Receive Buffer the
Message Assembly Buffer (MAB)
Message was loaded into
No
Begin Loading Message into
No
ERRIE = 1?
Identifier meets a
Generate
Yes
Interrupt
Filter Criteria?
Yes
Received?
Message?
Go to Start
Message
Message
Is
Start of
Detect
Valid
Start
Yes
Yes
Generate Overrun Error:
No
Set RXB1OVFL
Go to Start
No
Yes, meets criteria
for RXB1
Yes
No
Move Message into RXB1
according to which Filter
PIC18FXX8
Set FILHIT <2:0>
Criteria was met
Set RXRDY = 1
RXFUL = 0?
Yes
RXIE = 1?
Is
Is
No
DS41159E-page 231