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GAMMA
instabus
Release: February 2012
KNX EIB TP-UART 2-IC
Technical Manual
pages 42
Siemens AG
Infrastructure and Cities Sector,
Building Technologies
page 30
© Siemens AG 2012
Control Products and Systems
Subject to change without further notice.
P. O. Box 10 09 53,
D-93009 Regensburg
PollAddr
Slotcount
Checksum
Slot 0
Receive from Bus
s 0 1 2 3 4 5 6 7 p s
s 0 1 2 3 4 5 6 7 p s
s 0 1 2 3 4 5 6 7 p s
s 0 1 2 3 4 5 6 7 p s
s 0 1 2
Send to Controller
PollAddr
Pollingstate
Rec From Controller
s 0 1 2 3 4 5 6 7 p s
s 0 1 2 3 4 5 6 7 p s
Slot 0
Send to Bus
s 0 1 2 3 4 5 6 7 p s
Fig. 23: Timing for U_PollingState-Service (Host is slave)
Ctrl-Byte
Src-Addr
Src-Addr
PollAddr
PollAddr
Send to Bus
s 0 1 2 3 4 5 6 7 p s
s 0 1 2 3 4 5 6 7 p s
s 0 1 2 3 4 5 6 7 p s
s 0 1 2 3 4 5 6 7 p s
s 0 1 2 3 4 5 6 7 p s
Ctrl-Byte
Src-Addr
Src-Addr
PollAddr
PollAddr
Receive from Bus
s 0 1 2 3 4 5 6 7 p s
s 0 1 2 3 4 5 6 7 p s
s 0 1 2 3 4 5 6 7 p s
s 0 1 2 3 4 5 6 7 p s
s 0 1 2 3 4 5 6 7 p s
Ctrl-Byte
Src-Addr
Src-Addr
Poll Addr
Send to Controller
s 0 1 2 3 4 5 6 7 p s
s 0 1 2 3 4 5 6 7 p s
s 0 1 2 3 4 5 6 7 p s
s 0 1 2 3 4 5 6 7 p s
PSlotnr
PollAddr
PollAddr
Rec from Controller
s 0 1 2 3 4 5 6 7 p s
s 0 1 2 3 4 5 6 7 p s
s 0 1 2 3 4 5 6 7 p s
s
PollAddr
Slotcount
Checksum
Fillbyte for Slot0
Send to Bus
s 0 1 2 3 4 5 6 7 p s
s 0 1 2 3 4 5 6 7 p s
s 0 1 2 3 4 5 6 7 p s
s 0 1 2 3 4 5 6 7 p s
s 0 1 2 3
PollAddr
Slotcount
Checksum
Slot 0
Slot 1
Receive from Bus
s 0 1 2 3 4 5 6 7 p s
s 0 1 2 3 4 5 6 7 p s
s 0 1 2 3 4 5 6 7 p s
s 0 1 2 3 4 5 6 7 p s
s 0 1 2 3 4
PollAddr
PollAddr
Slotcount
Checksum
Slot 0
Send to Controller
0 1 2 3 4 5 6 7 p s
s 0 1 2 3 4 5 6 7 p s
s 0 1 2 3 4 5 6 7 p s
s 0 1 2 3 4 5 6 7 p s
s 0 1 2 3 4 5 6 7 p s
PollAddr
Pollingstate
Rec From Controller 0 1 2 3 4 5 6 7 p s
s 0 1 2 3 4 5 6 7 p s
Fig. 24: Timing for U_PollingState-Service for a Master
3.2.3.1.9.7
Services from UART
The first character of each service sent to the host is the control field. The control field contains the
information about the TP-UART-Service. There are 3 types of services sent to the host, the EIB-Layer-
2-Services, immediate acknowledge services and the special TP-UART-Services. The EIB-Layer-2-
Services contains information about its class and a flag containing the information whether the LPDU is
a repeated one. The immediate acknowledge services are only sent in busmonitormode and includes
informations about successful sending. The TP-UART-Services are to inform the host about the
communicationstate or to reset the communication.