PIC18LF8680T-I/PT Microchip Technology, PIC18LF8680T-I/PT Datasheet - Page 334
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PIC18LF8680T-I/PT
Manufacturer Part Number
PIC18LF8680T-I/PT
Description
IC PIC MCU FLASH 32KX16 80TQFP
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheet
1.PCM18XK1.pdf
(496 pages)
Specifications of PIC18LF8680T-I/PT
Core Processor
PIC
Core Size
8-Bit
Speed
40MHz
Connectivity
CAN, EBI/EMI, I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LVD, POR, PWM, WDT
Number Of I /o
68
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
80-TFQFP
Processor Series
PIC18LF
Core
PIC
Data Bus Width
8 bit
Data Ram Size
3328 B
Interface Type
I2C, SPI, AUSART, CAN
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
69
Number Of Timers
8
Operating Supply Voltage
2 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, ICE4000, DV164136, DM183032
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18LF8680T-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
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PIC18F6585/8585/6680/8680
23.6.2
The MCU can request to abort a message by clearing
the TXREQ bit associated with the corresponding mes-
sage buffer (TXBnCON<3> or BnCON<3>). Setting the
ABAT bit (CANCON<4>) will request an abort of all
pending messages. If the message has not yet started
transmission or if the message started but is inter-
rupted by loss of arbitration or an error, the abort will be
processed. The abort is indicated when the module
sets the TXABT bit for the corresponding buffer
(TXBnCON<6> or BnCON<6>). If the message has
started to transmit, it will attempt to transmit the current
message fully. If the current message is transmitted
fully and is not lost to arbitration or an error, the TXABT
bit will not be set because the message was transmit-
ted successfully. Likewise, if a message is being
transmitted during an abort request and the message is
lost to arbitration or an error, the message will not be
retransmitted and the TXABT bit will be set, indicating
that the message was successfully aborted.
FIGURE 23-2:
DS30491C-page 332
Message
Control
ABORTING TRANSMISSION
Queue
TXB0
TRANSMIT BUFFERS
TXB1
Transmit Byte Sequencer
Once an abort is requested by setting ABAT or TXABT
bits, it cannot be cleared to cancel the abort request.
Only CAN module hardware or a POR condition can
clear it.
23.6.3
Transmit
PIC18F6585/8585/6680/8680 devices of the pending
transmittable messages. This is independent from and
not related to any prioritization implicit in the message
arbitration scheme built into the CAN protocol. Prior to
sending the SOF, the priority of all buffers that are
queued for transmission is compared. The transmit
buffer with the highest priority will be sent first. If more
than one buffer has the same priority setting, the mes-
sage is transmitted in the order of TXB2, TXB1, TXB0,
B5, B4, B3, B2, B1, B0. There are four levels of transmit
priority. If TXP bits for a particular message buffer are
set to ‘11’, that buffer has the highest possible priority.
If TXP bits for a particular message buffer are ‘00’, that
buffer has the lowest possible priority.
TXB2
priority
TRANSMIT PRIORITY
is
2004 Microchip Technology Inc.
a
TXB3-TXB8
prioritization
within
the
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