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ACTS630MS Datasheet(PDF) 2 Page - Intersil Corporation

Part No. ACTS630MS
Description  Radiation Hardened EDAC (Error Detection and Correction)
Download  4 Pages
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Maker  INTERSIL [Intersil Corporation]
Homepage  http://www.intersil.com/cda/home
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ACTS630MS Datasheet(HTML) 2 Page - Intersil Corporation

   
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ACTS630MS
Function Tables
Control Functions
MEMORY
CYCLE
CONTROL
EDAC FUNCTION
DATA I/O
CHECKWORD
ERROR FLAGS
S1
S0
SEF
DEF
WRITE
Low
Low
Generates Checkword
Input Data
Output Checkword
Low
Low
READ
Low
High
Read Data and Check-
word
Input Data
Input Checkword
Low
Low
READ
High
High
Latch and Flag Error
Latch Data
Latch Checkword
Enabled
Enabled
READ
High
Low
Correct Data Word and
Generate Syndrome Bits
Output Corrected
Data
Output Syndrome
Bits
Enabled
Enabled
Check Word Generation
CHECKWORD BIT
16-BIT DATA WORD
0123456789
10
11
12
13
14
15
CB0
XX
XX
XXX
X
CB1
XX
XX
XX
X
X
CB2
X
X
X
X
X
X
X
X
CB3
XXX
XX
XXX
CB4
XXXXX
XXX
CB5
XXXXXXXX
NOTE: The six check bits are parity bits derived from the matrix of data bits as indicated by “x” for each bit
Error Syndrome Codes
SYNDROME
ERROR
CODE
ERROR LOCATIONS
DB
CB
NO
ERROR
0123456789
10
11
12
13
14
15
012345
CB0
L
L
H
L
L
HHH
L
L
L
HH
L
H
H
L
HHHHH
H
CB1
L
H
L
L
H
L
L
H
L
H
H
L
HH
L
H
H
L
HHHH
H
CB2
HL
LHL
L
HLHLH
H
LH
HLH
H
LH
H
H
H
CB3
L
L
L
HHH
L
L
HH
L
L
L
HHHHHH
L
H
H
H
CB4
H
H
H
LLLLL
HHHHH
L
L
L
HHHH
L
H
H
CB5
HHHHHHHH
LLLLLLLL
HHHHH
L
H
Error Functions
TOTAL NUMBER OF ERRORS
ERROR FLAGS
DATA CORRECTION
16-BIT DATA
6-BIT CHECKWORD
SEF
DEF
0
0
Low
Low
Not Applicable
1
0
High
Low
Correction
0
1
High
Low
Correction
1
1
High
High
Interrupt
2
0
High
High
Interrupt
0
2
High
High
Interrupt
Spec Number
518786


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