NCN5130 Datasheet, PDF (48/58 Pages) ON Semiconductor – Transceiver

NCN5130
Host Ctrl
NCN5130
KNX Bus
L_Data .ind
x 0 r 1 p1 p0 0 0
Data Octet 1
xx xx xxxx
Control Byte
x xxxx xx x
Data Octet 1
x xxxx xx x
w2.6 ms silence
U_Ackn .req
0001 0n ba
Data Octet N
xx xx xxxx
Checksum
xx xx xxxx
Data Octet N
x xxxx xx x
Checksum
x xxxx xx x
Immediate Ackn
x xxxx xx x
Figure 51. Receive Frame, 9−bit UART Mode, Frame End with Silence, No CRC−CCITT
Host Ctrl
NCN5130
KNX Bus
L_Data.ind
x 0 r 1 p1 p0 0 0
Data Octet 1
x xxx xxx x
Control Byte
xx xxx xxx
Data Octet 1
xx xxx xxx
U_Ackn.req
0 001 0nb a
Data Octet N
x xxx xxx x
w_{2.6ms silence}
Checksum
x xxx xxx x
CRC−CCITT High Byte
x xxx xxx x
CRC−CCITT Low Byte
x xxx xxx x
Data Octet N
xx xxx xxx
Checksum
xx xxx xxx
Immediate Ackn
xx xxx xxx
Figure 52. Receive Frame, 9−bit UART Mode, Frame End with Silence, with CRC−CCITT
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