EIB-TP-UART-IC Ver la hoja de datos (PDF) - Siemens AG
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EIB-TP-UART-IC Datasheet PDF : 26 Pages
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TP-UART-IC
Each L_Data-request is transmitted completely to the host controller. If TP - UART is polling
master the complete polling frame is transmitted to the host controller and regardless of
whether a collision is detected while sending the polling frame, or not. In case TP - UART is
polling slave just the control byte out of L_PollData-request is transmitted to the host
controller.
3.2.3.2.2 Acknowledge-Services
Acknowledge-Services are just transmitted to the host controller in busmonitor mode.
The short acknowledgment frame format consists of 15 Tbit (1 Tbit = 1/9600 s) idle time
followed by a single character which is used to acknowledge a L_Data.req frame. The
following figure shows the corresponding codes of the short acknowledgment.
Octet 0
Short ACK
87654321
1 1 0 0 1 1 0 0 ACK
0 0 0 0 1 1 0 0 NACK
1 1 0 0 0 0 0 0 BUSY
3.2.3.2.3 TP-UART-Control-Services
The TP-UART-Control-Services are services which exist only on this interface. They have to
reset the communication or to inform the host controller about the actual state.
3.2.3.2.3.1 TP-UART-Reset.indication-Service
The Reset.indication-Service is sent after each reset (e.g. TP_UART_Reset.requ).
TP-UART-Control Field
76543210
00000011
3.2.3.2.3.2 TP-UART-State.indication/response-Service
The TP-UART-State.response-Service is sent if an U_State.request-Service was received
from the host controller. In case of a slave collision, receive error, checksum error or
protocol error the TP-UART-IC sends a State.indication-Service.
TP-UART-Control Field
76543210
SC RE TE PE TW 1 1 1
SC = Slave Collision
RE = Receive Error (checksum, parity or bit error)
TE = Transmitter Error (send 0 receive 1)
PE = Protocol Error (e.g. illegal control byte)
TW = Temperature Warning1)
1)After a temperature warning was received, a second must at least be maintained until the next
telegram is sent.
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reserved.
25.15.10.41.33a
25.10.01
page 20
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