MX8000 Installation and Operation Guide
8–38
Table 8–47: Checksum Verification Process
Character
ASCII Code
Additive Checksum
XOR Checksum
|
7C
00 + 7C = 7C
FF ^ 7C = 83
[
5B
7C + 5B = D7
83 ^ 5B = D8
X
58
D7 + 58 = 12F
D8 ^ 58 = 80
|
7C
12F + 7C = 1AB
80 ^ 7C = FC
]
5D
1AB + 5D = 208
FC ^ 5D = A1
A
41
208 + 41 = 249
A1 ^ 41 = E0
8.11 US ASCII Character Code
The following table displays the US ASCII character its hexadecimal code equivalent.
Table 8–48: US ASCII Character Code
Character Hex Character Hex Character Hex Character Hex Character Hex
NUL 00
DC4 14
(
28
<
3C
Q/q 51/71
SOH 01
NACK
15
)
29
=
3D
R/r
52/72
STX 02
SYN 16
*
2A
>
3E
S/s
53/73
ETX 03
ETB 17
+
2B
?
3F
T/t
54/74
EOT 04
CAN 18
’ 2C
@
40
U/u
55/75
ENQ 05
EM 19
-
2D
A/a 41/61
V/v
56/76
ACK 06
SUB 1A
.
2E
B/b 42/62
W/w 57/77
BEL 07
ESC 1B
/
2F
C/c 43/63
X/x 58/78
BS 08
FS 1C
0
30
D/d 44/64
Y/y 59/79
HT 09
GS 1D
1
31
E/e 45/65
Z/z 5A/7A
LF 0A
RS 1E
2 32
F/f 46/66
[
5B
VT 0B
US 1F
3 33
G/g 47/67
\
5C
FF 0C
SPACE
20
4 34
H/h 48/68
]
5D
CR 0D
!
21
5
35
I/i 49/69
/
5E
S0 0E
“ 22
6 36
J/j
4A/6A
5F
S1 0F
# 23
7 37
K/k 4B/6B
‘ 60
DLE 10
$
24
8
38
L/l
4C/6C
{
7B
DC1 11
%
25
9
39
M/m 4D/6D
|
7C
DC2 12
&
26
:
3A
N/n 4E/6E
}
7D
DC3 13
‘ 27
; 3B
O/o
4F/6F
~ 7E
P/p
50/70
DEL
7F