80KSBR200 Datasheet, PDF (39/172 Pages) Integrated Device Technology – sRIO SERIAL BUFFER FLOW-CONTROL DEVICE

IDT 80KSBR200
Notes
Advanced Datasheet*
Any "Real Time" flag, indicated by RT in the following flag register tables, indicates the current condition of the flag-
causing event and cannot be cleared. No new doorbells or interrupts will be generated as a result of the write to a flag
register containing an RT flag. To generate a new doorbell or interrupt, at least one flag in the register must de-assert and
reassert.
Clearable flags are indicated by CL in the following flag register tables. These flags assert and lock whenever a flag
event occurs. They must be cleared by one of the designated reset methods. These flags represent highly transient condi-
tions, so in most cases the flag causing condition has disappeared prior to the clearing. In the event that the flag causing
condition is active at the time of the clearing, and the flag is immediately reasserted, a new doorbell or interrupt will be
generated.
6.3.3 Flag Masks
Flag masks default to fully masked upon a Master Reset or Load Configuration reset. The flag mask registers are
considered configuration registers and are individually programmed the same way as other configuration registers. The
flag mask registers have no shadow registers, so they can be programmed "on the fly".
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March 19, 2007
„2005 Integrated Device Technology, Inc. All rights reserved. Advanced Datasheet for informational purposes only. Product specifications subject to change without notice.NOT AN OFFER FOR SALE The information presented herein is subject to a
Non-Disclosure Agreement (NDA) and is for planning purposes only. Nothing contained in this presentation, whether verbal or written, is intended as, or shall have the effect of, a sale or an offer for sale that creates a contractual power of acceptance.