Siemens KNX EIB TP-UART 2-IC Manual page 21

KNX EIB TP-UART 2-IC
• U_ActivateBusyMode
• U_ResetBusyMode
• U_MxRstCnt + Repetitions
• U_ActivateCRC
• U_Set_Address +PhysAddressHigh +PhysAddressLow
• U_L-Data Start + CTRL-Byte
• U_L-Data Continue (index) + Data-Byte
• U_L-Data-End + Checksum
• U_PollingState (Slotnumber) + PollAddrHigh + PollAddrlow + State
Uart-Control Field
7 6 5 4 3 2 1 0
0 0 0 0 0 0 0 1 U_Reset.request
0 0 0 0 0 0 1 0 U_State.request
0 0 0 0 0 1 0 1 U_ActivateBusmon
0 0 0 1 0 n b a U_AckInformation
0 0 1 0 0 0 0 0 U_ProductID.request
0 0 1 0 0 0 0 1 U_ActivateBusyMode
0 0 1 0 0 0 1 0 U_ResetBusyMode
0 0 1 0 0 1 0 0 U_MxRstCnt
0 0 1 0 0 1 0 1 U_ActivateCRC
0 0 1 0 1 0 0 0 U_SetAddress
1 0 0 0 0 0 0 0 U_L_DataStart
1 0 i i i i i i U_L_DataContinue
0 1 l l l l l l U_L_DataEnd
1 1 1 0 s s s s U_PollingState
Fig. 3: Uart-Control Field
3.2.3.1.1 U_Reset.request-Service
Resets the TP-UART-IC to the initial state and clears all buffers. At start-up the TP-UART waits for a
bus free-time-out before sending a U_Reset.indication-Service to the host. To be sure that the TP-
UART is reset after power up the host shall wait for 50 ms after reset signal is high and then send the
U_Reset.request-Service.
UART-Controlfield (01
7 6 5 4
0 0 0 0
Fig. 4: U_Reset.request-Service
Siemens AG
Infrastructure and Cities Sector,
Building Technologies
Control Products and Systems
P. O. Box 10 09 53,
D-93009 Regensburg
Servicename
)
hex
3 2 1 0
0 0 0 1
© Siemens AG 2012
Subject to change without further notice.
Hex
01
02
05
n,B,a:
10-17
20
21
22
24
25
28
80
i = Index
81-BE
47-7F l = length
E0-EE s= Slotnumber
pages 42
GAMMA instabus
Release: February 2012
Nack,Busy,Addressed
1 ... 62
7 ... 63
0 ... 14
Technical Manual
page 21