Sagem MORPHOACCESS 200 - Appendix 3 - Iso 7811;2-1995 - Track 2 Dataclock Format; Data Encoding Table

A
A
P
P
P
P
E
E
N
N
D
D
I
I
X
X
3
3
-
-
I
I
S
S
O
O
7
7
8
8
1
1
1
1
/
/
2
2
-
-
1
1
9
9
9
9
5
5
-
-
T
T
R
R
A
A
C
C
K
K
2
2
D
D
A
A
T
T
A
A
C
C
L
L
O
O
C
C
K
K
F
F
O
O
R
R
M
M
A
A
T
T
Compliant with ISO07811/2-1995 - Track 2.
D
D
a
a
t
t
a
a
e
e
n
n
c
c
o
o
d
d
i
i
n
n
g
g
t
t
a
a
b
b
l
l
e
e
Value Bit pattern Meaning
0 0 0 0 0-1 "0"
1 1 0 0 0-0 "1"
2 0 1 0 0-0 "2"
3 1 1 0 0-1 "3"
4 0 0 1 0-0 "4"
5 1 0 1 0-1 "5"
6 0 1 1 0-1 "6"
7 1 1 1 0-0 llyll
8 0 0 0 1-0 "8"
9 1 0 0 1-1 "9"
10 (A
hex
) 0 1 0 1-1 unused character
11 (B
hex
) 1 1 0 1-0 start sentinel (start character)
12 (C
hex
) 0 0 1 1-1 unused character
13 (D
hex
) 1 0 1 1-0 field separator
14 (E
hex
) 0 1 1 1-0 unused character
15 (F
hex
) 1 1 1 1-1 end sentinel (stop character)
The least significant bit of every digit is sent first; the fifth bit is an odd
parity bit for each group of 4 data bits.
The complete message always looks as follows:
left edge start
data
characters
end LRC right edge
SK-0000011145-05 SAGEM Défense Sécurité document. Reproduction and disclosure forbidden.
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