Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

TXB0D7 Datasheet(PDF) 6 Page - Microchip Technology

Part # TXB0D7
Description  Stand-Alone CAN Controller with SPI Interface
Download  92 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

TXB0D7 Datasheet(HTML) 6 Page - Microchip Technology

Back Button TXB0D7 Datasheet HTML 2Page - Microchip Technology TXB0D7 Datasheet HTML 3Page - Microchip Technology TXB0D7 Datasheet HTML 4Page - Microchip Technology TXB0D7 Datasheet HTML 5Page - Microchip Technology TXB0D7 Datasheet HTML 6Page - Microchip Technology TXB0D7 Datasheet HTML 7Page - Microchip Technology TXB0D7 Datasheet HTML 8Page - Microchip Technology TXB0D7 Datasheet HTML 9Page - Microchip Technology TXB0D7 Datasheet HTML 10Page - Microchip Technology Next Button
Zoom Inzoom in Zoom Outzoom out
 6 / 92 page
background image
MCP2515
DS21801G-page 6
 2003-2012 Microchip Technology Inc.
1.5
CAN Protocol Engine
The CAN protocol engine combines several functional
blocks, shown in Figure 1-4 and described below.
1.5.1
PROTOCOL FINITE STATE
MACHINE
The heart of the engine is the Finite State Machine
(FSM). The FSM is a sequencer that controls the
sequential data stream between the TX/RX shift
register, the CRC register and the bus line. The FSM
also controls the Error Management Logic (EML) and
the parallel data stream between the TX/RX shift
registers and the buffers. The FSM ensures that the
processes of reception, arbitration, transmission and
error-signaling are performed according to the CAN
protocol. The automatic retransmission of messages
on the bus line is also handled by the FSM.
1.5.2
CYCLIC REDUNDANCY CHECK
The Cyclic Redundancy Check register generates the
Cyclic Redundancy Check (CRC) code, which is
transmitted after either the Control Field (for messages
with 0 data bytes) or the Data Field and is used to
check the CRC field of incoming messages.
1.5.3
ERROR MANAGEMENT LOGIC
The Error Management Logic (EML) is responsible for
the fault confinement of the CAN device. Its two
counters, the Receive Error Counter (REC) and the
Transmit Error Counter (TEC), are incremented and
decremented by commands from the bit stream
processor. Based on the values of the error counters,
the CAN controller is set into the states error-active,
error-passive or bus-off.
1.5.4
BIT TIMING LOGIC
The Bit Timing Logic (BTL) monitors the bus line input
and handles the bus-related bit timing according to the
CAN protocol. The BTL synchronizes on a recessive-
to-dominant bus transition at Start-of-Frame (hard
synchronization) and on any further recessive-to-
dominant bus line transition if the CAN controller itself
does not transmit a dominant bit (resynchronization).
The BTL also provides programmable time segments
to compensate for the propagation delay time, phase
shifts and to define the position of the sample point
within the bit time. The programming of the BTL
depends on the baud rate and external physical delay
times.
FIGURE 1-4:
CAN PROTOCOL ENGINE BLOCK DIAGRAM
Bit Timing Logic
CRC<14:0>
Comparator
Receive<7:0>
Transmit<7:0>
Sample<2:0>
Majority
Decision
StuffReg<5:0>
Comparator
Transmit Logic
Receive
Error Counter
Transmit
Error Counter
Protocol
FSM
RX
SAM
BusMon
Rec/Trm Addr.
RecData<7:0>
TrmData<7:0>
Shift<14:0>
(Transmit<5:0>, Receive<7:0>)
TX
REC
TEC
ErrPas
BusOff
Interface to Standard Buffer
SOF


Similar Part No. - TXB0D7

ManufacturerPart #DatasheetDescription
logo
Texas Instruments
TXB0101 TI-TXB0101 Datasheet
489Kb / 18P
[Old version datasheet]   1-BIT BIDIRECTIONAL VOLTAGE-LEVEL TRANSLATOR WITH AUTO DIRECTION SENSING AND 짹15-kV ESD PROTECTION
TXB0101 TI-TXB0101 Datasheet
838Kb / 22P
[Old version datasheet]   1-BIT BIDIRECTIONAL VOLTAGE-LEVEL TRANSLATOR WITH AUTO DIRECTION SENSING AND 짹15-kV ESD PROTECTION
TXB0101 TI-TXB0101 Datasheet
899Kb / 23P
[Old version datasheet]   1-BIT BIDIRECTIONAL VOLTAGE-LEVEL TRANSLATOR WITH AUTO DIRECTION SENSING AND 15-kV ESD PROTECTION
TXB0101DBVR TI-TXB0101DBVR Datasheet
489Kb / 18P
[Old version datasheet]   1-BIT BIDIRECTIONAL VOLTAGE-LEVEL TRANSLATOR WITH AUTO DIRECTION SENSING AND 짹15-kV ESD PROTECTION
TXB0101DBVR TI-TXB0101DBVR Datasheet
838Kb / 22P
[Old version datasheet]   1-BIT BIDIRECTIONAL VOLTAGE-LEVEL TRANSLATOR WITH AUTO DIRECTION SENSING AND 짹15-kV ESD PROTECTION
More results

Similar Description - TXB0D7

ManufacturerPart #DatasheetDescription
logo
Microchip Technology
MCP2515T-ESTRB4 MICROCHIP-MCP2515T-ESTRB4 Datasheet
633Kb / 84P
   Stand-Alone CAN Controller With SPI Interface
10/05/07
MCP2515 MICROCHIP-MCP2515_12 Datasheet
1Mb / 92P
   Stand-Alone CAN Controller with SPI Interface
2003-2012 11/29/11
MCP2515T-E MICROCHIP-MCP2515T-E Datasheet
633Kb / 84P
   Stand-Alone CAN Controller With SPI Interface
10/05/07
MCP2510I-ST MICROCHIP-MCP2510I-ST Datasheet
1Mb / 80P
   Stand-Alone CAN Controller with SPI??Interface
12/08/06
MCP2515 MICROCHIP-MCP2515 Datasheet
1Mb / 84P
   Stand-Alone CAN Controller With SPI??Interface
2005
MCP2515-E MICROCHIP-MCP2515-E Datasheet
1Mb / 92P
   Stand-Alone CAN Controller with SPI Interface
11/29/11
MCP2510 MICROCHIP-MCP2510 Datasheet
993Kb / 76P
   Stand-Alone CAN Controller with SPI Interface
2000 - 2001
MCP2510 MICROCHIP-MCP2510_07 Datasheet
1Mb / 80P
   Stand-Alone CAN Controller with SPI??Interface
2007
ENC28J60 MICROCHIP-ENC28J60_12 Datasheet
1Mb / 102P
   Stand-Alone Ethernet Controller with SPI Interface
10/26/12
ENC28J60 MICROCHIP-ENC28J60_06 Datasheet
1Mb / 96P
   Stand-Alone Ethernet Controller with SPI Interface
2006
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com