MC68HC912BD32CFU10 FREESCALE [Freescale Semiconductor, Inc], MC68HC912BD32CFU10 Datasheet - Page 178

• Manufacturer Part Number: MC68HC912BD32CFU10
• Description: Advance Information
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Byteflight™ Timing
Parameters
Byteflight™ Module
MC68HC912BD32 Rev 1.0
t_bit
t_cyc
t_cyc_min
t_cyc_max
t_max
t_tolerance
t_idle_min
t_syn_a
t_syn_a_min
t_syn_a_max
t_syn_n
t_syn_n_min
t_syn_n_max
t_w0
ID
ID
x-1
Symbol
bit time
cycle time (note 2)
min cycle time
max cycle time
maximum run time of a
signal in the bus system
tolerance of the run time of
a signal in the bus system
min bus idle time
Sync pulse ALARM
Sync pulse ALARM, min
pulse width
Sync pulse ALARM, max
pulse width
Sync pulse NORMAL
Sync pulse NORMAL, min
pulse width
Sync pulse NORMAL, max
pulse width
Sync pulse wait time
Identifier
previous Identifier
Characteristic
Table 34 Parameter of the Byteflight™ System
Freescale Semiconductor, Inc.
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time for the transmission of one bit, defined by the
physical limitations of the system
time distance between the end of the SYNC pulses
min time distance between the end of the SYNC
pulses
max time distance between the end of the SYNC
pulses
max run time of a signal between a transmit module
and the recognition by a receive module
is the sum of all tolerances
min bus idle time between two messages or the
SYNC pulse and a message
duration of the Sync pulse in the case of ALARM
min duration of the Sync pulse in the case of ALARM 1.85 s
max duration of the Sync pulse in the case of
ALARM
duration of the Sync pulse in the normal case
min duration of the Sync pulse in the normal case
max duration of the Sync pulse in the normal case
minimum time between end of a message and end
of SYNC pulse, t_w0 >= t_idle_min + t_syn_n_max
allowed values between 1 .. 255
Identifier of the previously received or transmitted
message. When the Sync pulse was the last activity
on the bus, then IDx-1 = 0
Byteflight™ Module
Description
100 ns
250 s
249.725 s
250.275 s
tbd,
ca 400ns
tbd,
ca 300ns
11 * t_bit
2 s
2.15 s
3 s
2.85 s
3.15 s
< 6000ns
Typ
(2)
(3)
(1)
8-sibus