User`s guide

XMI Registers
Bus Error Extension Register (XBEER)
Bus Error Extension Register (XBEER)
XBEER is used to capture various XMI node errors.
ADDRESS
Nodespace base address + 0000 0034
3
1 87 3210
Node−specific error bits MBZ
Unexpected Read Response (URR)
msb−p204−89
Only LOC Response (OLR)
Second Error Occurred (SEO)
bits<31:8>
Name: Reserved
Mnemonic: None
Type: RO, 0
Reserved for node-specific error bits or RO or R/W1C control bits.
bits<7:3>
Name: Reserved
Mnemonic: None
Type: RO, 0
Reserved; must be zero.
bit<2>
)
Name: Unexpected Read Response
Mnemonic: URR
Type: R/W1C, 0
URR indicates, when set, that the node received a read response
when one was not expected (there were no outstanding reads for the
commander ID in the response). In this context only, a LOC response
is NOT considered a read response, and if it follows a timeout on an
Ownership Read or Interlock Read transaction, it will not set URR.
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