Intel, Bit default description, Parity n – Intel CONTROLLERS 413808 User Manual
Page 544: Parity error, Ecc error n, Ecc error 0
Intel
®
413808 and 413812—SRAM Memory Controller
Intel
®
413808 and 413812 I/O Controllers in TPER Mode
Developer’s Manual
October 2007
544
Order Number: 317805-001US
8.6.11
SRAM Memory Controller Interrupt Status Register — SMCISR
Setting the SMCISR asserts an interrupt to the core. Upon an interrupt, the Intel
XScale
®
processor polls the interrupt status register for each unit. The interrupt status
register tells the core the reason for the interrupt. The SMCU has five interrupt
conditions: first ECC error (SMCISR[0]), more than one ECC error (SMCISR[1]), first
parity error (SMCISR[8]), and more than one parity error (SMCISR[9]).
If the SMCU detects an ECC error and SMCISR[0] is cleared, the error is logged in
SELOG and SMCISR[0] is set to 1. If SMCISR[0] is not cleared, any additional ECC
errors are not logged and SMCISR[1] is set.
Similarly, if the SMCU detects a parity error and SMCISR[8] is cleared, the parity error
is logged in SPCSR and SMCISR[8] is set to 1. If SMCISR[8] is not cleared, any
additional parity errors are not logged and SMCISR[9] is set.
Table 360. SRAM Memory Controller Interrupt Status Register — SMCISR
Bit
Default
Description
31:05
0000 000H
Reserved
09
0
2
Parity N:
Indicates that the SMCU detected a Parity error while SMCISR[8] was set.
0 = No error detected
1 = Error detected
08
0
2
Parity Error:
Indicates that the SMCU detected a Parity error and recorded the error in SPCSR.
0 = No error detected
1 = Error detected and recorded in SPLOG
07:04
0H
Reserved
03
0
2
Address Range Error: Indicates that a transaction to an invalid address range. For example, an
address that is outside the 1.0 MBytes SRAM space.
0 = No error detected
1 = Error detected
02
0
2
Reserved
01
0
2
ECC Error N:
Indicates that the SMCU detected an ECC error while MCISR[0] was set.
0 = No error detected
1 = Error detected
00
0
2
ECC Error 0:
Indicates that the SMCU detected an ECC error and recorded the error in SELOG.
0 = No error detected
1 = Error detected and recorded in SELOG
PCI
IOP
Attributes
Attributes
28
24
20
16
12
8
4
0
31
rv
na
rv
na
rv
na
rv
na
rv
na
rv
na
rv
na
rv
na
rv
na
rv
na
rv
na
rv
na
rv
na
rv
na
rv
na
rv
na
rv
na
rv
na
rv
na
rv
na
rv
na
rv
na
rc
na
rc
na
rv
na
rv
na
rv
na
rv
na
rc
na
rv
na
rc
na
rc
na
Attribute Legend:
RV = Reserved
PR = Preserved
RS = Read/Set
RW = Read/Write
RC = Read Clear
RO = Read Only
NA = Not Accessible
Intel XScale
®
processor Local Bus Address
Offset
+152CH