ECC Codes
3-59
3
ECC Codes
When the Falcon reports a single-bit error, software can use the syndrome
that was logged by the Falcon (upper or lower depending where the error
occurred) to determine which bit was in error. Table 3-19 shows the
syndrome for each possible single bit error. Table 3-20 shows the same
information ordered by syndrome. In order to relate this information to
PowerPC addresses and bit numbers, the user needs to understand how the
Falcon pair positions PowerPC data in DRAM. See the section on Data
Paths for an explanation of this.
Note that Tables 3-19 and 3-20 are the same whether the Falcon is
configured as upper or as lower.
Table 3-19. Syndrome Codes Ordered by Bit in Error
Bit
Syndrome
Bit Syndrome
Bit
Syndrome
Bit
Syndrome
Bit
Syndrome
rd0
$4A
rd16
$92
rd32
$A4
rd48
$29
ckd0
$01
rd1
$4C
rd17
$13
rd33
$C4
rd49
$31
ckd1
$02
rd2
$2C
rd18
$0B
rd34
$C2
rd50
$B0
ckd2
$04
rd3
$2A
rd19
$8A
rd35
$A2
rd51
$A8
ckd3
$08
rd4
$E9
rd20
$7A
rd36
$9E
rd52
$A7
ckd4
$10
rd5
$1C
rd21
$07
rd37
$C1
rd53
$70
ckd5
$20
rd6
$1A
rd22
$86
rd38
$A1
rd54
$68
ckd6
$40
rd7
$19
rd23
$46
rd39
$91
rd55
$64
ckd7
$80
rd8
$25
rd24
$49
rd40
$52
rd56
$94
rd9
$26
rd25
$89
rd41
$62
rd57
$98
rd10
$16
rd26
$85
rd42
$61
rd58
$58
rd11
$15
rd27
$45
rd43
$51
rd59
$54
rd12
$F4
rd28
$3D
rd44
$4F
rd60
$D3
rd13
$0E
rd29
$83
rd45
$E0
rd61
$38
rd14
$0D
rd30
$43
rd46
$D0
rd62
$34
rd15
$8C
rd31
$23
rd47
$C8
rd63
$32
Содержание MVME2700 Series
Страница 1: ...MVME2600 2700 Series Single Board Computer Programmer s Reference Guide V2600A PG2 ...
Страница 13: ...xiv ...
Страница 15: ...xvi ...
Страница 67: ...1 50 Board Description and Memory Maps 1 ...
Страница 70: ...Introduction 2 3 2 Four 31 bit tick timers Two 64 bit general purpose registers for cross processor messaging ...
Страница 151: ...2 84 Raven PCI Host Bridge Multi Processor Interrupt Controller Chip 2 ...
Страница 215: ...3 64 Falcon ECC Memory Controller Chip Set 3 ...
Страница 277: ...Glossary GL 14 G L O S S A R Y ...