MC68181 Datasheet, PDF (47/119 Pages) Freescale Semiconductor, Inc – Advance Information ROAMING FLEX chip SIGNAL PROCESSOR

Freescale Semiconductor, Inc.
MC68181
FLEX Message Word Definitions
• FLEX decoding devices must be capable of decoding frames at all of the
following combinations of data rate and modulation mode. They are:
1600 bps, 2 level; 3200 bps, 2 level; 3200 bps, 4 level; 6400 bps, 4 level.
• FLEX decoding devices must be designed to tolerate 4 minute fragment
separation times.
FLEX Character Sets and Rules
ALPHANUMERIC CHARACTER SET
The following tables define the characters to be displayed in the FLEX Alphanumeric
Message mode. Control characters that are not acted upon by the pager are ignored in
the display process (do not require display space), but are stored in memory for
possible download to an external device.
Table A-13 Alphanumeric Character Set
Least Significant 4
Most Significant 3 bits of character
bits of character
0
1
2
3
4
5
6
7
0
NUL DLE SP
0
@
P
‘
p
1
SOH DC1 !
1
A
Q
a
q
2
STX DC2 “
2
B
R
b
r
3
ETX DC3 #
3
C
S
c
s
4
EOT DC4 $
4
D
T
d
t
5
ENQ NAK %
5
E
U
e
u
6
ACK SYN &
6
F
V
f
v
7
BEL ETB ’
7
G
W
g
w
8
BS CAN (
8
H
X
h
x
9
TAB EM
)
9
I
Y
i
y
A
LF SUB *
:
J
Z
j
z
B
VT ESC +
;
K
[
k
{
C
FF FS
,
<
L
\
l
|
D
CR GS
–
=
M
]
m
}
E
SO RS
.
>
N
^
n
~
F
SI
US
/
?
O
_
o DEL
MOTOROLA
MC68181 Technical Data Sheet
For More Information On This Product,
Go to: www.freescale.com
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