Co Ntrol Decoding Ci R Cuit - HP 59313A Operating And Service Manual

4-26 . Co nt r ol Decodi ng Circu it .
4-27 . This section only operates in the LSN (listen) m ode . The bus controller puts α control character (Table
43) on the D
ATA IN lines and α two-microsecond (μ s)
L
SN C LK pulse is sent to this block .
If
t
he character i s
if
if
if
if
if
if
if
A
ny other valid 59313 Α code will cause no output .
σ
Ο
σ
α 2 Ms, RESET pulse occurs ;
α 2 μ s, STOP pulse occurs ;
α 2 μ s, STA RT pulse occurs ;
α 2 μ s, ΕΧΤ START ENABLE pulse occurs ;
Η ENABLE S RQ goes HI ;
Η ENABLE S RQ goes
L
O ;
α 2 μ s, RE V CHAN ON pulse occurs ;
α 2 μ s, RE V C HAN
O
FF pulse occurs .
Table 4-3 . Cont
r
ol Co
d
es
Section IV -
P
rinciples of
O
peration
Model 59313 Α
ASCII C h aracter
Data In Co d e
Co n trol Name
Η
Χ 1 001 000
RE S ET
Ι Χ 1 0 0 1 0 0 1
STO P
J Χ 1 0 0 1 0 1 0
STA R T
Κ
Χ 1 0 0 1 0 1 1
EXT START ENABLE
L
Χ 1 0 0 1 1 0 0
S R Q ENABLE
Μ
Χ 1 0 0 1 1 0 1
S R Q DISA BLE
Ν Χ 1 0 0 1 1 1 0
REV
C
H A N 0 Ν
0
x 1 μ ~1 1 1
REV C H A N
O
FF
I
N D I V
I CONTRO L C H A R ACT ER
ID U A L COD E S
PREF IX
IG N O RE D