Vax 613 0S Instruction Manual Page 61

  • Download
  • Add to my manuals
  • Print
  • Page
    / 344
  • Table of contents
  • BOOKMARKS
  • Rated. / 5. Based on customer reviews
Page view 60
3.3.3 Failing Address Register (FADR)—1.C200.0010
The FADR is the failing address register for DMA and I/O transactions. It holds
the starting longword address of a DMA transaction or the quadword address for
an I/O transaction when a TURBOchannel parity error or ECC error occurs.
The address is the address located on the TURBOchannel address lines, It is is
a longword address, virtual if the scatter/gather map was used to perform the
operation. The address appears as a dense space address, even if the original
reference was to sparse space. It locks on the first error (loads data), and unlocks
on any write operation. Write operations to this register or the TCEREG register
unlock both.
Note
Writing to this register unlocks both FADR and TCEREG. While unlocked,
the contents of this register are UNPREDICTABLE.
The registers format and contents are:
0027 2631
MR−0071−93RAGS
UNP FAILING ADDRESS
Bits Access Init. Description
26:0 R/WU UNP Failing address
31:27 R/WU UNP Reserved
TURBOchannel I/O Registers 3–13
Page view 60
1 2 ... 56 57 58 59 60 61 62 63 64 65 66 ... 343 344

Comments to this Manuals

No comments