RT1710
Preamble
0
Data In
1
0
1
0
1
0
1
0
Sync-1
0
0
1
1
0
Sync-1
0
0
1
1
BMC
BMC Example
End of Frame
Bus driven after
end of Frame
t
InterFrameGap
Bus driven before
Preamble
Preamble
t
EndDriveBFSK
or
t
EndDriveBMC
t
StartDrive
Inter-Frame Gap Timings
0
High Impedance
(level set by Rp/Rd)
1
0
1
0
1
etc
1UI
t
StartDrive
1UI
1UI
1UI
1UI
1UI
BMC Encoded Start of Preamble
Final bit
of frame
0
Trailing edge
of final bit
High Impedance
(level set by Rp/Rd)
Preamble for
next frame
0
1UI
min t
HoldLowBMC
max t
EndDriveBMC
t
InterFrameGap
Transmitting or Receiving BMC Encoded Frame Terminated
Copyright
©
2016 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS1710-00 May 2016
www.richtek.com
5
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
