HP 3000 III Series Manual page 118

Use
System Verification and Troubleshooting
Table 3-2. Maintenance Panel Switches and Lamps (Continued)
I----r-----------r--
IPanell Panel Marking
I
I
Row
1 I
I I I
---
----------------
-----~_.----------------~-----~
ceives the data when memory is dis-
played by means of the MEMORY DISPLAY
sw itch.
SP2 displays the contents of the
Scratch Pad 2 Register, used by the
microcode. B14 and B15 will be zero.
SP3 displays the contents of the
Scratch Pad 3 Register, used by the
microcode. B14 and B15 will be zero.
RA displays the contents of the TOS
register. B14 and B15 will be zero.
RB displays the contents of the 2nd
s ta c k reg i s te r • B14 and B15 will
zero.
RC displays the contents of the 3rd
s ta c k reg is te r • B14 and B15 will be
zero.
RD
displays the contents of the 4th
stack register. B14 and B15 will be
zero.
STATUS displays the CPU Status Reg-
ister.
PB displays the PB Status Register
in REGISTER DISPLAY (0:15). B14 and
B15 display the PB-Ban k Reg is te r.
P displays the P Register in REGIS'rER
DISPLAY (0: 15). B14 and B15 display
the PB-Bank Register.
-I PL displays the PL Register in REG-
I
IS'rER DISPLAY (0: 15). B14 and B15
I
display the PB-Bank Register; these
I
two bits are display only.
I
I
DL displays the contents of the DL
I
Register in REGISTER DISPLAY (0:15).
I
B14 and B15 display the stack regist-
I
er; these two bits are display only.
I
3-18