Intel C2550 FH8065401488912 데이터 시트
제품 코드
FH8065401488912
Intel
®
Atom™ Processor C2000 Product Family for Microserver
September 2014
Datasheet, Vol. 2 of 3
Order Number: 330061-002US
91
Volume 2—System Agent and Root Complex—C2000 Product Family
Global Error Reporting
4.7.7.1
Local Error Registers
Each local device contains a set of local error registers. The PCIe Root Port Local Error
registers are defined by the PCI Express Base Specification, Revision 2.1.
The local error register definitions are:
• Local Uncorrectable Error Status Register
The SoC provides the Local Uncorrectable Error Status registers for the
uncorrectable errors associated with the SoC local interfaces. When a specific
uncorrectable error occurred in the local interface, its corresponding bit in the
Uncorrectable Error Status register is set. Each error is individually masked by
the Uncorrectable Error Mask register.
• Local Uncorrectable Error Mask Register
• Local Uncorrectable Error Severity Register
The SoC provides Local Error Severity registers for uncorrectable errors
associated with SoC local interfaces. The Local Uncorrectable Error Severity
register controls whether an individual error is reported as a non-fatal or fatal
error. An error is reported as fatal when the corresponding error bit in the
severity register is set. If the bit is clear, the corresponding error is considered
non-fatal.
Note:
The PCIe Root Complex integrated endpoint detected uncorrectable internal errors are
reported using Uncorrectable Internal Error Status (bit 22) of the ERRUNCSTS register
and then uses the ERRUNCSEV: Uncorrectable Internal Error Severity bit to control the
severity of the uncorrectable internal errors. This is reported using Uncorrectable
Internal Error Status (bit 22) of the ERRUNCSTS register and the Corrected Internal
Status (bit 14) of the ERRCORSTS register.
• Local Uncorrectable First/Next Error Status Register
The SoC provides the Local Error Log register for the errors associated with the
SoC local interfaces. When an error is detected by the SoC, the information
related to the error is stored in the log register. The SoC local errors are first
separated into correctable and uncorrectable categories. Each category
contains two sets of log registers: FERR and NERR. FERR logs the first
occurrence of an error, while NERR logs the subsequent occurrence of the
errors.
Note:
FERR/NERR do not log a masked error. The FERR log remains valid and unchanged from
the first error detection until the clearing of the corresponding FERR Error bit in the
Error Status register by the software. The xxxxERRUNCSTS registers are only cleared
by writing to the corresponding Local Error Status register. For example, clearing bit 0
in RTF_ERRUNCSTS clears the bit in this register and bit 0 in RTF_FERRUNCSTS and
RTF_NERRUNCSTS.
• Local Uncorrectable First Error Header Log Register
The SoC provides Local First Error Header Log register for the uncorrectable
errors associated with the SoC local interfaces. The Header log stores the
header information of the associated first uncorrectable error.