MC68HC908AS60MFN MOTOROLA [Motorola, Inc], MC68HC908AS60MFN Datasheet - Page 368
MC68HC908AS60MFN
Manufacturer Part Number
MC68HC908AS60MFN
Description
HCMOS Microcontroller Unit
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet
1.MC68HC908AS60MFN.pdf
(454 pages)
- Current page: 368 of 454
- Download datasheet (6Mb)
Byte Data Link Controller-Digital (BDLC-D)
Technical Data
368
NOTE:
The extra logic 1s are an enhancement to the J1850 protocol which
forces a byte boundary condition fault. This is helpful in preventing noise
on the J1850 bus from corrupting a message.
TMIFR0 — Transmit Multiple Byte IFR without CRC (Type 3) Bit
However, if the programmer wishes to transmit a single byte followed
by a CRC byte, the programmer should load the byte into the BDR
before the EOD symbol has been received, and then set the TMIFR1
bit. Once the TDRE interrupt occurs, the programmer should then set
the TEOD bit in the BCR2. This will result in the byte in the BDR being
the only byte transmitted before the IFR CRC byte, and no TDRE
interrupt will be generated.
If the programmer attempts to set the TMIFR1 bit immediately after
the EOD symbol has been received from the bus, the TMIFR1 bit will
remain in the reset state, and no attempt will be made to transmit an
IFR byte.
If a loss of arbitration occurs when the BDLC is transmitting any byte
of a multiple byte IFR, the BDLC will go to the loss of arbitration state,
set the appropriate flag, and cease transmission.
If the BDLC loses arbitration during the IFR, the TMIFR1 bit will be
cleared and no attempt will be made to retransmit the byte in the
BDR. If loss of arbitration occurs in the last two bits of the IFR byte,
two additional 1 bits will be sent out.
The TMIFR0 bit is used to request the BDLC to transmit the byte in
the BDLC data register (BDR) as the first byte of a multiple byte IFR
without CRC. Response IFR bytes are still subject to J1850 message
length maximums (see
See
Freescale Semiconductor, Inc.
For More Information On This Product,
1 = If this bit is set prior to a valid EOD being received with no CRC
Byte Data Link Controller-Digital (BDLC-D)
Figure
error, once the EOD symbol has been received, the BDLC will
attempt to transmit the appropriate normalization bit followed
by IFR bytes. The programmer should set TEOD after the last
IFR byte has been written into the BDR. After TEOD has been
set, the last IFR byte to be transmitted will be the last byte
which was written into the BDR.
Go to: www.freescale.com
21-19.
21.5.2 J1850 Frame
MC68HC908AS60 — Rev. 1.0
Format).
MOTOROLA
Related parts for MC68HC908AS60MFN
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Motorola, Inc [VOLTAGE REGULATOR]
Manufacturer:
Motorola
Datasheet:
Part Number:
Description:
6367254 MOTOROLA SC (XSTRS/R F)
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet:
Part Number:
Description:
MC1494LMotorola, Inc [MONOLITHIC FOUR-QUADRANT MULTIPLIER]
Manufacturer:
Motorola
Datasheet:
Part Number:
Description:
MC1466LMotorola, Inc [PRECISION WIDE RANGE VOLTAGE AND CURRENT REGULATOR]
Manufacturer:
Motorola
Datasheet:
Part Number:
Description:
MC145532DWMotorola, Inc [ADPCM Transcoder]
Manufacturer:
Motorola
Datasheet:
Part Number:
Description:
Silicon Controlled Rectifiers
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet:
Part Number:
Description:
RF Power Field Effect Transistors N-Channel Enhancement-Mode Lateral MOSFETs
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet:
Part Number:
Description:
RF POWER FIELD EFFECT TRANSISTORS
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet:
Part Number:
Description:
LATERAL N-CHANNEL BROADBAND RF POWER MOSFETs
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet:
Part Number:
Description:
RF POWER FIELD EFFECT TRANSISTOR
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet:
Part Number:
Description:
RF LOW POWER TRANSISTOR NPN SILICON
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet:
Part Number:
Description:
PLASTIC SURFACE MOUNT ZENER DIODES 1.5 WATTS 3.3-68 VOLTS
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet:
Part Number:
Description:
OVERVOLTAGE TRANSIENT SUPPRESSOR
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet:
Part Number:
Description:
TMOS POWER FET 15 AMPERES 60 VOLTS
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet:
Part Number:
Description:
TMOS POWER FET LOGIC LEVEL 19 AMPERES 30 VOLTS RDS(on) = 0.099 OHM
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet: