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型号： DSPIC30F5015-30I/PT
厂商： Microchip Technology
文件页数： 30/129页
文件大小： 0K
描述： IC DSPIC MCU/DSP 66K 64TQFP
产品培训模块： dsPIC30F Quadrature Encoder Interface
Serial Communications using dsPIC30F CAN
Serial Communications using dsPIC30F I2C
Serial Communications using dsPIC30F SPI
Serial Communications using dsPIC30F UART
dsPIC30F 12 bit ADC - Part 2
dsPIC30F Addressing Modes - Part 1
dsPIC30F Architecture - Part 1
dsPIC30F DSP Engine & ALU
dsPIC30F Interrupts
dsPIC30F Motor Control PWM
dsPIC Timers
Asynchronous Stimulus
dsPIC30F Addressing Modes - Part 2
dsPIC30F Architecture - Part 2
dsPIC30F 12-bit ADC Part 1
标准包装： 160
系列： dsPIC™ 30F
核心处理器： dsPIC
芯体尺寸： 16-位
速度： 30 MIP
连通性： CAN，I²C，SPI，UART/USART
外围设备： 高级欠压探测/复位，电机控制 PWM，QEI，POR，PWM，WDT
输入/输出数： 52
程序存储器容量： 66KB（22K x 24）
程序存储器类型： 闪存
EEPROM 大小： 1K x 8
RAM 容量： 2K x 8
电压 - 电源 (Vcc/Vdd)： 2.5 V ~ 5.5 V
数据转换器： A/D 16x10b
振荡器型： 内部
工作温度： -40°C ~ 85°C
封装/外壳： 64-TQFP
包装： 托盘
产品目录页面： 651 (CN2011-ZH PDF)
配用： XLT64PT5-ND - SOCKET TRAN ICE 64MQFP/TQFP
AC164319-ND - MODULE SKT MPLAB PM3 64TQFP
DV164005-ND - KIT ICD2 SIMPLE SUIT W/USB CABLE
其它名称： DSPIC30F501530IPT
2008 Microchip Technology Inc.
DS70149D-page 125
dsPIC30F5015/5016
19.0 CAN MODULE
19.1
Overview
The Controller Area Network (CAN) module is a serial
interface, useful for communicating with other CAN
modules
or
microcontroller
devices.
This
interface/protocol
was
designed
to
allow
communications within noisy environments. Only one
CAN module is available.
The CAN module is a communication controller
implementing the CAN 2.0 A/B protocol, as defined in
the BOSCH specification. The module will support
CAN 1.2, CAN 2.0A, CAN 2.0B Passive and CAN 2.0B
Active versions of the protocol. The module
implementation is a full CAN system. The CAN
specification is not covered within this data sheet. The
reader may refer to the BOSCH CAN specification for
further details.
The module features are as follows:
Implementation of the CAN protocol CAN 1.2,
CAN 2.0A and CAN 2.0B
Standard and extended data frames
0-8 bytes data length
Programmable bit rate up to 1 Mbit/sec
Support for remote frames
Double-buffered receiver with two prioritized
received message storage buffers (each buffer
may contain up to 8 bytes of data)
6 full (standard/extended identifier) acceptance
filters, 2 associated with the high priority receive
buffer, and 4 associated with the low priority
receive buffer
2 full acceptance filter masks, one each associ-
ated with the high and low priority receive buffers
Three transmit buffers with application specified
prioritization and abort capability (each buffer may
contain up to 8 bytes of data)
Programmable wake-up functionality with
integrated low pass filter
Programmable Loopback mode supports self-test
operation
Signaling via interrupt capabilities for all CAN
receiver and transmitter error states
Programmable clock source
Programmable link to timer module for
time-stamping and network synchronization
Low-power Sleep and Idle mode
The CAN bus module consists of a protocol engine,
and message buffering/control. The CAN protocol
engine handles all functions for receiving and
transmitting messages on the CAN bus. Messages are
transmitted by first loading the appropriate data
registers. Status and errors can be checked by reading
the appropriate registers. Any message detected on
the CAN bus is checked for errors and then matched
against filters to see if it should be received and stored
in one of the receive registers.
19.2
Frame Types
The CAN module transmits various types of frames,
which include data messages or remote transmission
requests initiated by the user as other frames that are
automatically generated for control purposes. The
following frame types are supported:
Standard Data Frame
A Standard Data Frame is generated by a node when
the node wishes to transmit data. It includes an 11-bit
Standard Identifier (SID) but not an 18-bit Extended
Identifier (EID).
Extended Data Frame
An Extended Data Frame is similar to a Standard Data
Frame, but includes an Extended Identifier as well.
Remote Frame
It is possible for a destination node to request the data
from the source. For this purpose, the destination node
sends a Remote Frame with an identifier that matches
the identifier of the required Data Frame. The appropri-
ate data source node will then send a Data Frame as a
response to this remote request.
Error Frame
An Error Frame is generated by any node that detects
a bus error. An error frame consists of 2 fields: an Error
Flag field and an Error Delimiter field.
Overload Frame
An Overload Frame can be generated by a node as a
result of 2 conditions. First, the node detects a
dominant bit during lnterframe Space, which is an
illegal condition. Second, due to internal conditions, the
node is not yet able to start reception of the next
message. A node may generate a maximum of 2
sequential Overload Frames to delay the start of the
next message.
Interframe Space
Interframe Space separates a proceeding frame (of
whatever type) from a following Data or Remote
Frame.
Note:
This data sheet summarizes features of
this group of dsPIC30F devices and is not
intended to be a complete reference
source. For more information on the CPU,
peripherals, register descriptions and
general device functionality, refer to the
“dsPIC30F Family Reference Manual”
(DS70046). For more information on the
device instruction set and programming,
refer to the “dsPIC30F/33F Programmer’s
Reference Manual” (DS70157).
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