HP 3000 SERIES II System Service Manual page 117

Maintenance Procedures
CIRCUITSIOE 135 _ _- - - - - - - _
COMPONENT
SIDEri2~4i6miiiiiiiiiiiiiiiiirnmL....-
J1mDl1l1l1rmmDl1I1l1IlL
=JimmRiirmfiiiiiimiiL ----.
c::::::::J
c::::::::J
0
00
[TI0
SELECTOR CHANNEL
CONTROL PCA
30030-60003
ERROR LOGGING REGISTER
16
15 - - ILLEGAL ORDER
10 - - PARITY ERROR
9
U66
PORT ERROR - - -
ILLEGAL ADDRESS - - 2
TRIGGER/FREEZE
SELECTOR
CQMPONFNT 510f: 24 6
CIH.CUITSl[)f 1"\
~J
_--1--+-__
CONTROL PCA
3003060003
SET NO. OVER WHITE STRIPE
TO SELECT ONE OF THE
FOLLOWING:
O.
OFF
1. JUMP ORDER
2. RETURN RESIDUE ORDER
3. INTERRUPT ORDER
4. END ORDER
5. CONTROL ORDER
6. SENSE ORDER
7. WRITE ORDER
8. READ ORDER
9. ERROR (XERR)
WRITE CHAINING ERROR - -
READ CHAINING ERROR--
16
1':> - - SR TIMEOUT
10 - - SO TIMEOUT
7522-28
Figure 4-19. Selector Channel Control PCA Switch and Register Locations
4-31