mc68hc705v12 Freescale Semiconductor, Inc, mc68hc705v12 Datasheet - Page 153
mc68hc705v12
Manufacturer Part Number
mc68hc705v12
Description
M68hc05-based Mcu Hc05 Freescale Semiconductor
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC705V12.pdf
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MC68HC705V12
—
Rev. 3.0
Normalization Bit (NB)
Break Signal (BREAK)
Start-of-Frame Symbol (SOF)
End-of-Data Symbol (EOD)
End-of-Frame Symbol (EOF)
Inter-Frame Separation Symbol (IFS)
Idle
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
data 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
byte is 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.
Byte Data Link Controller – Digital (BDLC–D)
For More Information On This Product,
Go to: www.freescale.com
Byte Data Link Controller – Digital (BDLC–D)
Figure
Figure
14-7(d)). This allows the
Figure
14-7(f)). If no IFR
Figure
BDLC MUX Interface
Advance Information
Figure
14-7(g)).
14-7(e)).
14-7(c)).
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