HP 262SA - Character Mode Transfers; Configuration Status Byte Contents

Data Communications
7
6
5 0
\ GID DID i8P
':r Bee PAD
~
BYTE 1
IPARITY I 1 I
I
'·'I~~
PARITY~
Example: Status bytes "i@P" would be interpreted as follows'
00 = Force
O's or 1's
"i"
1101000 = odd parity
01 = Even
"@"
100000o = ASCII. LRC. < 1000 byte buffers
10 = Odd
"P"
1 01 0000 = no data. terminal in remote
11 = 8-bit data
6
5
4
3
0
MULTIPOINT STATUS BYTES
BYTE 2
IPARITY 1
1
I
I
I I I
@
100
0000
110
0000
CODE~
L.J I
A
100
0001
a
110
0001
Data Source
B 100 0010 b
110
0010
0= ASCII
Address Feature
C 100
0011 110 0011
1 = EBCDIC
o= Data source
c
address
D 100 0100 d
110
0100
BLOCK CHECK
E
100
0101
110 0101
1 = No effect
e
0:=
LRC
F 100
0110
f
110
0110
1
= CRC-16
~ BUFFER SIZE
G
100
0111
9
110 0111
EXTENDED TEXT FEATURE
00
< 1000
H 100
1000
h 110
1000
o= no effect
01 = 1000 to < 2000
I
100
1001 110
1001
1 =Extended Feature
10 = 2000
to < 4000
J
100
1010
110
1010
11 > 4000
K
100
1011 110
1011
L
100
1100
110 1100
M 100
1101
m 110
1101
7
6
5
4
3
2
0
N
100
1110
110
1110
IPARITY I 1 I
10 I0 I
1 I 0 I
0
100
1111
0
110 1111
BYTE 3
P
101 0000
111
0000
P
WAIT TO TRANSMIT ~
I
a
101
0001 q 111
0001
1 = Terminal is ready to send
BUSY (Used
with
R
101 0010
111
0010
o= Terminal has no data
printerWRU)
S
101
0011 111 0011
0= Not busy
T
101 0100
111
0100
1 = Busy
U
101 0101
u
111
0101
V 101
0110
111
0110
W
101 0111
w 111
0111
X 101 1000
111
1000
Y
101 1001 111 1001
Z
101
1010
111 1010
TERMINAL MODE
[
101 1011
111
1011
"-
101 1100
111
1100
Terminal WRU PrinterWRU
J
101 1101
111
1101
101 1110 111
1110
o= Terminal is in Local
o= Printer is offline
101 1111 111 1111
1 = Terminal is in Remote
1
= Printer is on line
Figure 7-18. Configuration Status Byte Contents
Character Mode Transfers
Character mode transfers are not used in an HP multipoint environment. All data is trans-
ferred in block form.
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