MC68HC912B32MFU8 MOTOROLA [Motorola, Inc], MC68HC912B32MFU8 Datasheet - Page 102

• Manufacturer Part Number: MC68HC912B32MFU8
• Description: 16-Bit Microcontroller
• Manufacturer: MOTOROLA [Motorola, Inc]

TSIFR — Transmit Single Byte IFR with No CRC (Type 1 and Type 2)
TMIFR0 — Transmit Multiple Byte IFR without CRC (Type 3)
TMIFR1 — Transmit Multiple Byte IFR with CRC (Type 3)
102
MOTOROLA
Used to request the BDLC to transmit the byte in the BDLC data register (BDR) as a single byte IFR
with no CRC.
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.
This bit requests the BDLC to transmit the byte in the BDLC data register (BDR) as the first byte of a
multiple byte IFR with CRC or as a single byte IFR with CRC.
TYPE 1 — SINGLE BYTE FROM A SINGLE RESPONDER
TYPE 2 — SINGLE BYTE FROM MULTIPLE RESPONDERS
TYPE 0 — NO IFR
TYPE 3 — MULTIPLE BYTES FROM A SINGLE RESPONDER
0 = TSIFR will be cleared automatically once the BDLC has successfully transmitted the byte in the
1 = If set prior to a valid EOD being received with no CRC error, once the EOD symbol has been
0 = TMIFR0 will be cleared automatically once the BDLC has successfully transmitted the EOD
1 = If this bit is set prior to a valid EOD being received with no CRC error, once the EOD symbol
0 = TMIFR1 will be cleared automatically once the BDLC has successfully transmitted the CRC byte
1 = If set prior to a valid EOD being received with no CRC error, once the EOD symbol has been
HEADER
HEADER
HEADER
HEADER
BDR onto the bus, or TEOD is set by the CPU, or an error is detected on the bus.
received the BDLC will attempt to transmit the appropriate normalization bit followed by the byte
in the BDR.
symbol, by the detection of an error on the multiplex bus, or by a transmitter underrun caused
when the programmer does not write another byte to the BDR following the TDRE interrupt.
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
BDR register. After TEOD has been set, the last IFR byte to be transmitted will be the last byte
which was written into the BDR register.
and EOD symbol, by the detection of an error on the multiplex bus, or by a transmitter underrun
caused when another byte is not written to the BDR following the TDRE interrupt.
received the BDLC will attempt to transmit the appropriate normalization bit followed by IFR
bytes. After TEOD has been set by software and the last IFR byte has been transmitted, the
CRC byte is transmitted.
DATA FIELD
DATA FIELD
DATA FIELD
DATA FIELD
Figure 25 Types of In-Frame Response
CRC
CRC
CRC
CRC
NB
NB
NB
ID1
ID
IFR DATA FIELD
MC68HC912B32TS/D
IDn
MC68HC912B32
CRC