Sun Microsystems Ultra 25 Service Manual page 139

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post max max Output Comparison (Continued)
TABLE 11-6
Output Displayed
0>Setup Final DMMU Entries
0>Post Image Region Scrub
0>Run POST from Memory
0>Verifying checksum on copied image.
0>The Memory's CHECKSUM value is f482.
0>The Memory's Content Size value is 8c57a.
0>Success...
Checksum on Memory Validated.
0>Test CPU Caches.....
0>I-Cache RAM Test
0>I-Cache Tag RAM
0>I-Cache Valid/Predict TAGS Test
0>I-Cache Snoop Tag Field
0>I-Cache Branch Predict Array Test
0>Branch Prediction Initialization
0>D-Cache RAM
0>D-Cache Tags
0>D-Cache Micro Tags
0>D-Cache SnoopTags Test
0>W-Cache RAM
0>W-Cache Tags
0>W-Cache Valid bit Test
0>W-Cache Bank valid bit Test
0>W-Cache SnoopTAGS Test
0>P-Cache RAM
0>P-Cache Tags
0>P-Cache SnoopTags Test
0>P-Cache Status Data Test
0>8k DMMU TLB 0 Data
0>8k DMMU TLB 1 Data
0>8k DMMU TLB 0 Tags
0>8k DMMU TLB 1 Tags
0>8k IMMU TLB Data
0>8k IMMU TLB Tags
0>FPU Registers and Data Path
0>FPU Move Registers
0>FSR Read/Write
What Is Happening
Memory is allocated for POST.
Allocated memory is scrubbed
clean.
POST is transferred from ROM to
RAM memory. POST is executed
from memory from this point
forward.
Copied data is verified.
CPU internal caches are tested.
Instruction cache is tested.
Data and write caches are tested.
Prefetch cache is tested.
Translation look-aside buffers
(TLB) are tested for data and
instruction buffers.
Floating point unit (FPU) is
checked.
FPU status register is checked.
Chapter 11 Power-On Self-Test
11-9

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