MC68HC908AS60MFN MOTOROLA [Motorola, Inc], MC68HC908AS60MFN Datasheet - Page 344

• Manufacturer Part Number: MC68HC908AS60MFN
• Description: HCMOS Microcontroller Unit
• Manufacturer: MOTOROLA [Motorola, Inc]

Byte Data Link Controller-Digital (BDLC-D)
21.5.3.3 Normalization Bit (NB)
21.5.3.4 Break Signal (BREAK)
21.5.3.5 Start-of-Frame Symbol (SOF)
21.5.3.6 End-of-Data Symbol (EOD)
21.5.3.7 End-of-Frame Symbol (EOF)
21.5.3.8 Inter-Frame Separation Symbol (IFS)
21.5.3.9 Idle
Technical Data
344
The NB symbol has the same property as a logic 1 or a logic 0. It is only
used in IFR message responses.
The BREAK signal is defined as a passive-to-active transition followed
by an active period of at least 240 s (see
The SOF symbol is defined as passive-to-active transition followed by an
active period 200 s in length (see
bytes which follow the SOF symbol to begin with a passive bit,
regardless of whether it is a logic 1 or a logic 0.
The EOD symbol is defined as an active-to-passive transition followed
by a passive period 200 s in length (see
The EOF symbol is defined as an active-to-passive transition followed by
a passive period 280 s in length (see
transmitted after an EOD symbol is transmitted, after another 80 s the
EOD becomes an EOF, indicating completion of the message.
The IFS symbol is defined as a passive period 300 s in length. The
20- s IFS symbol contains no transition, since when it is used it always
appends to a 280- s EOF symbol (see
An idle is defined as a passive period greater than 300 s in length.
Freescale Semiconductor, Inc.
For More Information On This Product,
Byte Data Link Controller-Digital (BDLC-D)
Go to: www.freescale.com
Figure 21-7
Figure 21-7
Figure 21-7
Figure 21-7
Figure 21-7
MC68HC908AS60 — Rev. 1.0
(d)). This allows the data
(f)). If no IFR byte is
(g)).
(e)).
(c)).
MOTOROLA