Motorola MVME1X7P manual Syndrome Decoding, Syndrome Bit Encoding

Models: MVME1X7P

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4

MCECC Functions

Syndrome Decoding

The following table defines the syndrome bit encoding for the Petra/MCECC ASIC. A syndrome code value of $00 indicates no error found. All other syndrome code values denote an error. The bit in error is decoded as shown in the table.

Table 4-4. Syndrome Bit Encoding

Bit in Error

Syndrome Code

Bit in Error

Syndrome Code

 

 

 

 

Bit 0

$4F

Bit 16

$0E

 

 

 

 

Bit 1

$4A

Bit 17

$0B

 

 

 

 

Bit 2

$52

Bit 18

$13

 

 

 

 

Bit 3

$54

Bit 19

$15

 

 

 

 

Bit 4

$57

Bit 20

$16

 

 

 

 

Bit 5

$58

Bit 21

$19

 

 

 

 

Bit 6

$5B

Bit 22

$1A

 

 

 

 

Bit 7

$5D

Bit 23

$1C

 

 

 

 

Bit 8

$23

Bit 24

$62

 

 

 

 

Bit 9

$25

Bit 25

$64

 

 

 

 

Bit 10

$26

Bit 26

$67

 

 

 

 

Bit 11

$29

Bit 27

$68

 

 

 

 

Bit 12

$2A

Bit 28

$6B

 

 

 

 

Bit 13

$2C

Bit 29

$6D

 

 

 

 

Bit 14

$31

Bit 30

$70

 

 

 

 

Bit 15

$34

Bit 31

$77

 

 

 

 

Check Bit 0

$01

Check Bit 4

$10

 

 

 

 

Check Bit 1

$02

Check Bit 5

$20

 

 

 

 

Check Bit 2

$04

Check Bit 6

$40

 

 

 

 

Check Bit 3

$08

 

 

 

 

 

 

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Motorola MVME1X7P manual Syndrome Decoding, Syndrome Bit Encoding