PIC18F2580-I/SO Microchip Technology, PIC18F2580-I/SO Datasheet - Page 331
![IC PIC MCU FLASH 16KX16 28SOIC](/photos/6/59/65909/150-28-soic_sml.jpg)
PIC18F2580-I/SO
Manufacturer Part Number
PIC18F2580-I/SO
Description
IC PIC MCU FLASH 16KX16 28SOIC
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC18F2221-ISO.pdf
(46 pages)
2.PIC18F4480-IPT.pdf
(490 pages)
3.PIC18F4480-IPT.pdf
(8 pages)
4.PIC18F4480-IPT.pdf
(6 pages)
5.PIC18F4480-IPT.pdf
(6 pages)
6.PIC18F2580-ESO.pdf
(483 pages)
Specifications of PIC18F2580-I/SO
Program Memory Type
FLASH
Program Memory Size
32KB (16K x 16)
Package / Case
28-SOIC (7.5mm Width)
Core Processor
PIC
Core Size
8-Bit
Speed
40MHz
Connectivity
CAN, I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, HLVD, POR, PWM, WDT
Number Of I /o
25
Eeprom Size
256 x 8
Ram Size
1.5K x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
PIC18F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
1.5 KB
Interface Type
SPI/I2C/EUSART
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
25
Number Of Timers
4
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, DM163011, DV164136
Minimum Operating Temperature
- 40 C
On-chip Adc
8-ch x 10-bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
XLT28SO-1 - SOCKET TRANSITION 28SOIC 300MIL
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F2580-I/SO
Manufacturer:
MICROCHIP
Quantity:
2 300
Part Number:
PIC18F2580-I/SO
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
- PIC18F2221-ISO PDF datasheet
- PIC18F4480-IPT PDF datasheet #2
- PIC18F4480-IPT PDF datasheet #3
- PIC18F4480-IPT PDF datasheet #4
- PIC18F4480-IPT PDF datasheet #5
- PIC18F2580-ESO PDF datasheet #6
- Current page: 331 of 483
- Download datasheet (9Mb)
23.7
23.7.1
Of all receive buffers, the MAB is always committed to
receiving the next message from the bus. The MCU
can access one buffer while the other buffer is available
for message reception or holding a previously received
message.
When a message is moved into either of the receive
buffers, the associated RXFUL bit is set. This bit must
be cleared by the MCU when it has completed process-
ing the message in the buffer in order to allow a new
message to be received into the buffer. This bit
provides a positive lockout to ensure that the firmware
has finished with the message before the module
attempts to load a new message into the receive buffer.
If the receive interrupt is enabled, an interrupt will be
generated to indicate that a valid message has been
received.
Once a message is loaded into any matching buffer,
user firmware may determine exactly what filter caused
this reception by checking the filter hit bits in the
RXBnCON
FILHIT<3:0> of RXBnCON serve as filter hit bits. In
Mode 1 and 2, FILHIT<4:0> of BnCON serves as filter
hit bits. The same registers also indicate whether the
current message is an RTR frame or not. A received
message is considered a standard identifier message if
the EXID bit in the RXBnSIDL or the BnSIDL register is
cleared. Conversely, a set EXID bit indicates an
extended identifier message. If the received message
is a standard identifier message, user firmware needs
to read the SIDL and SIDH registers. In the case of an
extended identifier message, firmware should read the
SIDL, SIDH, EIDL and EIDH registers. If the RXBnDLC
or BnDLC register contain non-zero data count, user
firmware should also read the corresponding number of
data bytes by accessing the RXBnDm or the BnDm
registers. When a received message is an RTR and if
the current buffer is not configured for automatic RTR
handling, user firmware must take appropriate action
and respond manually.
Each receive buffer contains RXM bits to set special
Receive modes. In Mode 0, RXM<1:0> bits in
RXBnCON define a total of four Receive modes. In
Mode 1 and 2, RXM1 bit, in combination with the EXID
mask and filter bit, define the same four receive modes.
© 2007 Microchip Technology Inc.
Note:
Message Reception
RECEIVING A MESSAGE
The entire contents of the MAB are moved
into the receive buffer once a message is
accepted. This means that regardless of
the
extended) and the number of data bytes
received, the entire receive buffer is over-
written with the MAB contents. Therefore,
the contents of all registers in the buffer
must be assumed to have been modified
when any message is received.
or
type
BnCON
of
registers.
identifier
(standard
In
Mode
PIC18F2480/2580/4480/4580
Preliminary
or
0,
Normally, these bits are set to ‘00’ to enable reception
of all valid messages as determined by the appropriate
acceptance filters. In this case, the determination of
whether or not to receive standard or extended mes-
sages is determined by the EXIDE bit in the accep-
tance filter register. In Mode 0, if the RXM bits are set
to ‘01’ or ‘10’, the receiver will accept only messages
with standard or extended identifiers, respectively. If an
acceptance filter has the EXIDE bit set such that it does
not correspond with the RXM mode, that acceptance
filter is rendered useless. In Mode 1 and 2, setting
EXID in the SIDL Mask register will ensure that only
standard or extended identifiers are received. These
two modes of RXM bits can be used in systems where
it is known that only standard or extended messages
will be on the bus. If the RXM bits are set to ‘11’ (RXM1
= 1 in Mode 1 and 2), the buffer will receive all mes-
sages regardless of the values of the acceptance fil-
ters. Also, if a message has an error before the end of
frame, that portion of the message assembled in the
MAB before the error frame will be loaded into the
buffer. This mode may serve as a valuable debugging
tool for a given CAN network. It should not be used in
an actual system environment as the actual system will
always have some bus errors and all nodes on the bus
are expected to ignore them.
In Mode 1 and 2, when a programmable buffer is
configured as a transmit buffer and one or more accep-
tance filters are associated with it, all incoming mes-
sages matching this acceptance filter criteria will be
discarded. To avoid this scenario, user firmware must
make sure that there are no acceptance filters associ-
ated with a buffer configured as a transmit buffer.
23.7.2
When in Mode 0, RXB0 is the higher priority buffer and
has two message acceptance filters associated with it.
RXB1 is the lower priority buffer and has four acceptance
filters associated with it. The lower number of acceptance
filters makes the match on RXB0 more restrictive and
implies a higher priority for that buffer. Additionally, the
RXB0CON register can be configured such that if RXB0
contains a valid message and another valid message is
received, an overflow error will not occur and the new
message will be moved into RXB1 regardless of the
acceptance criteria of RXB1. There are also two
programmable acceptance filter masks available, one for
each receive buffer (see Section 23.5 “CAN Message
Buffers”).
In Mode 1 and 2, there are a total of 16 acceptance
filters available and each can be dynamically assigned
to any of the receive buffers. A buffer with a lower num-
ber has higher priority. Given this, if an incoming mes-
sage matches with two or more receive buffer
acceptance criteria, the buffer with the lower number
will be loaded with that message.
RECEIVE PRIORITY
DS39637C-page 329
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