PIC18LF6680-I/PT Microchip Technology, PIC18LF6680-I/PT Datasheet - Page 2

• Manufacturer Part Number: PIC18LF6680-I/PT
• Description: IC PIC MCU FLASH 32KX16 64TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18LF6680-I/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: 64KB (32K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 3.25K x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 16x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TFQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIC18F6585/6680/8585/8680
6. Module: Enhanced Controller Area
7. Module: Enhanced Controller Area
8. Module: ADC
DS80162E-page 2
In Mode 2, the FIFOEMPTY bit (COMSTAT<7>) is
not automatically cleared upon a FIFO empty
condition.
Work around
Clear FIFOEMPTY bit twice after reading any
message from FIFO. FIFOEMPTY will remain set
if FIFO is still not empty.
Date Codes that pertain to this issue:
All engineering and production devices.
Bits 7 and 6 in the COMSTAT register are swapped
for write operation. As a result, performing an
individual set/clear bit operation on bit 6 in the
COMSTAT register actually sets/clears bit 7 and
vice versa. Note that the read operation will read
the correct bit.
Work around
If individual bit clear operation is required, first make
sure that the desired bit is not already cleared. If the
bit is set, use the swapped bit position. For exam-
ple, use ‘BCF COMSTAT, 6’ to clear bit 7. If the bit
is already cleared, do not clear it again.
If possible, operate on the entire register using
‘MOVWF, MOVFF, CLRF’, etc. instructions.
Date Codes that pertain to this issue:
All engineering and production devices.
A/D conversion does not start if the device is put to
Sleep during the auto-acquisition period. As a
result, the device will need another wake-up event
source to wake-up from Sleep.
Work around
Do not use the auto-acquisition feature when A/D
conversion during Sleep is required.
Date Codes that pertain to this issue:
All engineering and production devices.
Network (ECAN™ Technology)
Network (ECAN™ Technology)
9. Module: Core (Instruction Set)
EXAMPLE 1:
10. Module: Enhanced Controller Area
The Decimal Adjust W register instruction, DAW, may
improperly clear the Carry (C) bit (STATUS<0>)
when executed.
Work around
Test the Carry bit state before executing the DAW
instruction. If the Carry bit is set, increment the
next higher byte to be added using an instruction
such as INCFSZ (this instruction does not affect
any Status flags and will not overflow a BCD nib-
ble). After the DAW instruction has been executed,
process the Carry bit normally (see Example 1).
This is repeated for each DAW instruction.
Date Codes that pertain to this issue:
All engineering and production devices.
The behavior of the Phase Segment 2 Select bit
(SEG2PHTS) in the BRGCON2 register is
inverted. As a result, when Phase Segment 2 is
less than Phase Segment 1, or IPT, the actual bit
rate will not be correct.
Work around
1. Use SEG2PHTS = 0 for freely programmable
2. Select Phase Segment 2 such that it is greater
Date Codes that pertain to this issue:
All engineering and production devices.
MOVLW
ADDLW
BTFSC
INCFSZ byte2
DAW
BTFSC
INCFSZ byte2
and ‘1’ for maximum of Phase Segment 1 or
Information Processing Time (IPT), whichever
is greater.
or equal to Phase Segment 1.
0x80
0x80
STATUS, C
STATUS, C
Network (ECAN™ Technology)
PROCESSING THE CARRY
BIT DURING BCD ADDITIONS
© 2007 Microchip Technology Inc.
; .80 (BCD)
; .80 (BCD)
; test C
; inc next higher LSB
; test C
; inc next higher LSB