EP80579 Datasheet, PDF (626/1916 Pages) Intel Corporation – Intel® EP80579 Integrated Processor Product Line

Intel^® EP80579 Integrated Processor
16.5.1.33 Offset ECh: AAAAREG - Fixed As Pattern Register
Constant value used for debug.
Table 16-256.Offset ECh: AAAAREG - Fixed A Pattern Register
Description: AAAAREG: Fixed A Pattern
View: PCI
BAR: SMRBASE
Bus:Device:Function: 0:0:0
Offset Start: ECh
Offset End: EFh
Size: 32 bit
Default: AAAAAAAAh
Power Well: Core
Bit Range
31 :00
Bit Acronym
Bit Description
AAAA
Hardwired to As for read-return
Sticky
Bit Reset
Value
Bit Access
N
AAAAAAAAh
RO
16.5.1.34 Memory BIST Registers
The following set of registers cover the MemBIST logic which is used for testing the
external DDR devices, as well as the connections between the EP80579 and the DDR
chips. The following must be complete prior to running MemBist:
• Memory controller internal CSRs are set to match external DDR configuration.
• JEDEC DDRII/III initialization sequence.
• EP80579 DDR pad (Receive Enable and DQS) calibration.
The CSR’s following this CSR are the memory-mapped registers for the memory
controller. The SMRBASE register described in Section 16.1.1.9, “Offset 14h: SMRBASE
- System Memory RCOMP Base Address Register” on page 395, provides the base
address for these registers. The offsets listed for the following registers are relative to
this base address.
The value for BAR for all registers in this section is BAR14h.
16.5.1.35 Offset 140h: MBCSR - MemBIST Control Register
Table 16-257.Offset 140h: MBCSR - MemBIST Control Register (Sheet 1 of 3)
Description: MBCSR: Top level control register for DDR MemBIST.
View: PCI
BAR: SMRBASE
Bus:Device:Function: 0:0:0
Offset Start: 140h
Offset End: 143h
Size: 32 bit
Default: 00000000h
Power Well: Core
Bit Range
31
Bit Acronym
Bit Description
START
Start operation:
1 => Set this bit to begin MemBIST execution.
0 => Hardware will clear this bit when MemBIST
execution is completed.
Sticky
Bit Reset
Value
Bit Access
N
0b
RWS
Intel^® EP80579 Integrated Processor Product Line Datasheet
626
August 2009
Order Number: 320066-003US