Intel CONTROLLERS 413808 - Manual (Page 154)

Intel
®
413808 and 413812—Address Translation Unit (PCI-X)
Intel ® 413808 and 413812 I/O Controllers in TPER Mode
Developer’s Manual October 2007
154 Order Number: 317805-001US
2.14.12 ATU BIST Register - ATUBISTR
The ATU BIST Register controls the functions the Intel XScale
®
processor performs
when BIST is initiated. This register is the interface between the host processor
requesting BIST functions and the 4138xx replying with the results from the software
implementation of the BIST functionality.
Table 38. ATU BIST Register - ATUBISTR
Bit Default Description
07 0
2
BIST Capable - This bit value is always equal to the ATUCR ATU BIST Interrupt Enable bit. See Section
2.14.40, “ATU Configuration Register - ATUCR” on page 177 .
06 0
2
Start BIST - When the ATUCR BIST Interrupt Enable bit is set:
Setting this bit generates an interrupt to the Intel XScale ® processor to perform a software BIST
function. The Intel XScale ® processor clears this bit when the BIST software has completed with the
BIST results found in ATUBISTR register bits [3:0].
When the ATUCR BIST Interrupt Enable bit is clear:
Setting this bit does not generate an interrupt to the Intel XScale ® processor and no BIST functions is
performed. The Intel XScale ® processor does not clear this bit.
05:04 00
2
Reserved
03:00 0000
2
BIST Completion Code - when the ATUCR BIST Interrupt Enable bit is set and the ATUBISTR Start BIST
bit is set (bit 6):
The Intel XScale ® processor places the results of the software BIST in these bits. A nonzero value
indicates a device-specific error.
PCI
IOP
Attributes
Attributes
7 4 0
ro
ro
rw
rw
rv
rv
rv
rv
rw
rw
rw
rw
rw
rw
rw
rw
Register Offset
+00FH
Attribute Legend:
RV = Reserved
PR = Preserved
RS = Read/Set
RW = Read/Write
RC = Read Clear
RO = Read Only
NA = Not Accessible