HP 3000 III Series Manual page 119

System Verification and Troubleshooting
Table 3-2. Ma intenance Panel Sw itches and Lamps (Cont inued)
1 T
--r
IPanell Panel Marking
1
I
Row
I 1
1 _ _ 1______ I_. .__
~
_
Use
DB displays the Data Base Register in
REGISTER DISPLAY (0:15). B14 and B15
display the DB-Bank Register.
Q
d i sp1 ays the
Q
Re g is te r in
RE
GI ST ER
DISPLAY (0: 15). B14 and B15 display
the Stack-Bank Registe r; these two
bits are display only.
S displays the S Registe r in REGI STER
DISPLAY (0:15). B14 and B15 display
the Stack-Bank Registe r; these two
bits are display only.
Z
displays the
Z
Registe r in REGI STER
DISPLAY (0:15). B14 and B15 display
the Stac k-Bank Registe r.
CNTR, display bits 10:15.
CIR, display only. Display valid only
when the CLOCK INHIBIT/FREE RUN switch
is at INHIBIT pos i tion (sing Ie cycle
operation) •
13
14
REGISTER
DISPLAY 0
through 15,
B15, and B14
(lamps)
SWITCH
REGISTER
o
through 15,
B15, and B14
(bistable
sw itches)
Display the register identified by the
lighted REGISTER SELECTION lamp. The
REGISTER DISPLAY lamps also indicate the
data which will be loaded by the LOAD
REGISTER, MEM ADDRS FROM DISPL switch.
Switches 0 through 15 provide a l6-bit
word to:
Load in a selected register by means
of the LOAD REGISTER FROM SWITCH RGTR
sw itch.
Store in memory by means of the MEMORY
S'rORE sw itch.
Use as an instruction word when the
EXECU'rE SW RG'rR sw itch is pres sed.
Match with a word read from memory to
cause a read breakpoint halt (using
the BREAKPOINT READ ENABLE sw itch) •
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