User manual
D
7
D
6
D
5
D
4
X
0
0
0
Command
X
0
0
1
Command
X
0
1
0
Primary
Address
X
0
1
1
Primary
Address
X
0
1
1
Primary
Address
X
0
1
1
Primary
Address
X
1
1
0
X
1
1
1
Bits
D
3
↓
D
2
↓
D
1
↓
D
0
↓
Column→
Row ↓
0 (A) 0 (B) 1 (A) 1 (B) 2 (A) 2 (B) 3 (A) 3(B) 4 (A) 4 (B) 5 (A) 5 (B) 6 (A) 6 (B) 7 (A) 7 (B)
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
0
0
1
0
1
0
1
0
1
0
1
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
NUL
SOH
STX
ETX
EOT
ENQ
ACK
BEL
BS
HT
LF
VT
FF
CR
SO
SI
GTL
SDC
PPC*
GET
TCT*
DLE
DC1
DC2
DC3
DC4
NAK
SYN
ETB
CAN
EM
SUB
ESC
FS
GS
RS
US
LLO
DCL
PPU*
SPE
SPD
SP
!
“
#
$
%
&
‘
(
)
•
+
,
-
.
/
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
0
1
2
3
4
5
6
7
8
9
:
;
<
=
>
?
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
UNL
@
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
P
Q
R
S
T
U
V
W
X
Y
Z
[
\
]
∩
⎯
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
UNT
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
s
t
u
v
w
x
y
z
{
:
}
≅
DEL
ADDRESSED
COMMAND
GROUP
(ACG)
UNIVERSAL
COMMAND
GROUP
(UCG)
LISTEN
ADDRESS
GROUP
(LAG)
TALK
ADDRESS
GROUP
(TAG)
PRIMARY
COMMAND
GROUP
(PCG)
SECONDARY
COMMAND
GROUP
(SDC)
*PPC (PARALLEL POLL CONFIGURE) PPU (PARALLEL POLL UNCONFIGURE),
and TCT (TAKE CONTROL) not implemented by Model 2000.
Note: D
0
= DIO1 ... D
7
= DIO8; X = Don’t Care.
Figure E-3
Command
codes
2000-900 (J - Aug 2010) BOOK.fm Page 12 Wednesday, October 12, 2011 12:29 PM