Epson Multi-mode Data Controller MFJ-1278B User Manual
Page 123
MFJ-1278B MULTI-MODE ADVANCED OPERATION
So $1B in hexidecimal notation is equal to 27 in standard decimal notation. Table 5-1
presents a list of ASCII character codes that are available in most computer manuals. A table
of ASCII codes for control characters follows:
Dec
Hex
Control
Mnemonic
Dec
Hex
Control
Mnemonic
0
$00
<CTRL-@>
NUL
16
$10
<CTRL-P>
DLE
1
$01
<CTRL-A>
SOH
17
$11
<CTRL-Q>
DC1
2
$02
<CTRL-B>
STX
18
$12
<CTRL-R>
DC2
3
$03
<CTRL-C>
ETX
19
$13
<CTRL-S>
DC3
4
$04
<CTRL-D>
EOT
20
$14
<CTRL-T>
DC4
5
$05
<CTRL-E>
ENQ
21
$15
<CTRL-U>
NAK
6
$06
<CTRL-F>
ACK
22
$16
<CTRL-V>
SYN
7
$07
<CTRL-G>
BEL
23
$17
<CTRL-W>
ETB
8
$08
<CTRL-H>
BS
24
$18
<CTRL-X>
CAN
9
$09
<CTRL-I>
HT
25
$19
<CTRL-Y>
EM
10
$0A
<CTRL-J>
LF
26
$1A
<CTRL-Z>
SUB
11
$0B
<CTRL-K>
VT
27
$1B
<CTRL-[>
ESC
12
$0C
<CTRL-L>
FF
28
$1C
<CTRL-\>
FS
13
$0D
<CTRL-M>
CR
29
$1D
<CTRL-]>
GS
14
$0E
<CTRL-N>
SO
30
$1E
<CTRL-^>
RS
15
$0F
<CTRL-O>
SI
31
$1F
<CTRL-_>
US
127
$7F
<DELETE>
Table 5-1. ASCII Codes for Control Characters.
PACKET OPERATING MODES
In Chapter 4 we discussed two of the packet operating modes, Command Mode and
Converse Mode. Packet also can operate in the third mode, Transparent Mode which is a
data-transfer mode like Converse Mode, but is intended primarily for computer data
interchange rather than human conversation. In the following sub-sections we will briefly
describe all three of these modes.
Command Mode
Command Mode is used to enter commands that alter the MFJ-1278B's operating parameters.
All the other MFJ-1278B operating modes are entered from Command Mode. When the
MFJ-1278B is in Command Mode, the Command Mode prompt,
cmd:
is printed at the beginning of each input line. Note, however, that if the MFJ-1278B has