mc68hc912bc32 Freescale Semiconductor, Inc, mc68hc912bc32 Datasheet - Page 224
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mc68hc912bc32
Manufacturer Part Number
mc68hc912bc32
Description
M68hc12 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC912BC32.pdf
(334 pages)
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Byte Data Link Communications (BDLC)
15.7.4.1 Invalid Passive Bit
See
occurs between the active-to-passive transition beginning the current data bit (or symbol) and A, the
current bit would be invalid.
15.7.4.2 Valid Passive Logic 0
See
occurs between A and B, the current bit would be considered a logic 0.
15.7.4.3 Valid Passive Logic 1
See
occurs between B and C, the current bit would be considered a logic 1.
15.7.4.4 Valid EOD Symbol
See
occurs between C and D, the current symbol would be considered a valid end-of-data symbol (EOD).
224
Figure
Figure
Figure
Figure
15-6(1). If the passive-to-active received transition beginning the next data bit or symbol
15-6(2). If the passive-to-active received transition beginning the next data bit (or symbol)
15-6(3). If the passive-to-active received transition beginning the next data bit (or symbol)
15-6(4). If the passive-to-active received transition beginning the next data bit (or symbol)
ACTIVE
PASSIVE
ACTIVE
PASSIVE
ACTIVE
PASSIVE
ACTIVE
PASSIVE
Figure 15-6. J1850 VPW Received Passive Symbol Times
64 µs
A
A
M68HC12B Family Data Sheet, Rev. 9.1
128 µs
200 µs
B
B
C
C
D
(1) INVALID PASSIVE BIT
(2) VALID PASSIVE LOGIC 0
(3) VALID PASSIVE LOGIC 1
(4) VALID EOD SYMBOL
Freescale Semiconductor
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