SAP5SD-A-G1-T Datasheet, PDF (41/63 Pages) List of Unclassifed Manufacturers – Universal Actuator-Sensor Interface IC

SAP5S / SAP51
Universal Actuator-Sensor Interface IC
Table 27: LED status indication
Priority / Status
LED1 / LED 2 Note
1. Power Off
gree _{red No power supply available}
n
2. External Reset
red red ^{DSTRBn driven LOW for more than 90ms.}
3. Periphery Fault
4. No data
exchange
(Address = 0)
5. No data
exchange
green
red
alternating
Periphery Fault signal generated at PFAULT input.
green _red ^{Slave is waiting for address assignment. Data Port communication is not}
possible.
The IC was reset by the Communication Watchdog or by RES or BR01
master calls, thus the Data_Exchange_Disable flag is still set,
red
red _{prohibiting Data Port communication. IC is waiting for a}
Write_Parameter request. ¹
6. Normal
operation
green red Data communication is established
1 _{This status is not signaled if the Communication Watchdog is not activated (refer to chapter 4.17}
Communication Monitor/Watchdog).
The flashing frequency of any flashing status indication is 2 … 3 Hz.
In case of the simultaneous occurrence of several states the status with the highest priority is signaled.
4.11.2. Master/Repeater Mode
In Master/Repeater Mode LED1 provides the Manchester-II-coded, re-synchronized equivalent of the telegram
signal received at the AS-i input channel.
Every received AS-i telegram is checked for consistency with the protocol specifications and timing jitters
become removed as long as they stay within the specified limits. In case a telegram error is detected, the
output becomes inactive for a certain time periode, see chapter 4.19.3.
LED2 is always logic HIGH (high impedance) in Master/Repeater. In such applications, the green LED shall
be connected to Pin UOUT or different supply levels.
Data Sheet
July 17, 2012
© 2012 Zentrum Mikroelektronik Dresden AG — Rev. 3.1
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without
the prior written consent of the copyright owner. The information furnished in this publication is PRELIMINARY and subject to
changes without notice.
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