80KSBR200 Datasheet, PDF (45/172 Pages) Integrated Device Technology – sRIO SERIAL BUFFER FLOW-CONTROL DEVICE

IDT 80KSBR200
Notes
Advanced Datasheet*
7.3.2 Logical Layer Errors
Table below lists all the errors detected by the SerB logical layer and the actions taken by SerB. Note that when the
SerB action includes sending an error response to either UL or RIO, an error response is only sent if the original transac-
tion was a request that required a response. Otherwise, no error response is sent. When dealing with multiple errors,
discard of packet has higher priority than error response.
Here, error checking is listed based on the type of transaction and table also lists the action taken for particular error.
Errors for NRead Transaction
Error
Interrupt
Generated if
enable bit
set on
LTLEECSR
Status Bit RIO Error
set on
Response
LTLEDCSR Generated
Logical/Transport Layer
Capture Register
Comments
Priority
Bit 4: ITD
Priority of Read
transaction is 3
Bit 4: ITD
No
Using the incoming RIO packet, for RIO packet
Small Transport type packet;
dropped
LTLACCSR[XA] =
packet bits [78:79],
LTLACCSR[A] =
packet bits [48:76],
LTLDIDCCSR[DIDMSB] = 0’s,
LTLDIDCCSR[DID] =
packet bits [16:23],
LTLDIDCCSR[SIDMSB] = 0’s,
LTLDIDCCSR[SID] =
packet bits [24:31],
LTLCCCSR[FT] =
packet bits [12:15],
LTLCCCSR[TT] =
packet bits [32:35]
For Large Transport type packets;
TransportType Bit 28: TSE
Received
reserved TT
Bit 28: TSE No
LTLACCSR[XA] =
packet bits [94:95],
LTLACCSR[A] =
packet bits [64:92],
LTLDIDCCSR[DIDMSB] =
packet bits[16:23],
LTLDIDCCSR[DID] =
packet bits [24:31],
LTLDIDCCSR[SIDMSB] =
packet bits[32:39],
LTLDIDCCSR[SID] =
packet bits [40:47],
LTLCCCSR[FT] =
packet bits [12:15],
LTLCCCSR[TT] =
packet bits [48:51]
Same as previous entry
RIO packet is
dropped
Received TT
which is not
enabled
Table 5 Hardware Errors for NRead Transaction
45 of 172
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.