IBM 3745 Series Service Functions page 107

Address Compare
Deactivate Scanner Address Compare
• ACTION 1, 2, 3, or 4 was selected:
The successful completion of an address
compare automatically deactivates the func-
tion.
• ACTION 5 was selected:
Type D, then press SEND.
• To deactivate the scanner address compare
function before completion of the address
compare, proceed according to the type of
selected scanner address compare action:
Action 1, 4, or 5: type D, then press SEND.
Action 2 or 3: press BREAK (ATTN).
If the address compare screen is no longer dis-
played:
1. Call the scanner address compare function
again (see the beginning of this section).
2. Type D in
D.
3. Press SEND.
The scanner address compare is also deactivated
when you release the scanner.
1
SE~ECT/RElEASE
I •
EI,TER A TO ACTIVATE AC
all
D
,0
DEA:r:-!ATE -,>
D
D,,'IP/lm I
3 MOJE CONTROL I - ENTER HAlFIiORD S'ORAGE ACDRESS (ooeo TO FFF<)
4 D/ALT STORE I
D/AU
3LCC~S
: - SELECT 1 TO 4 ST:RACE A:CESSES (F, S, q, 1/)
6 elALT LSR I F
=
I-FETCH OR OATA LOAD S ' CAfA STOqE
7 DIAL T XREG I R = CYCLE STEAL READ
II = :Y:LE STEAL IIIlITE
ACJRESS CO'IPARE I
C~~-POINT
TRACEI - SELECT O',E SCMJt.tR ACTION
0,
2, 3, ", 5)
10 D/ALI HPTSS/ESSI 1
=
NO A:IION 2 ' SI"q DElAYtJ DISPLAV
3 ' S'ART DELIlYED ALTER
"=
STep S:IINiJEq
5
=
S;OP SCII~"Eq BUT LEA'It AC ACI:VE
Fl :EIJC F2:~IENU2 F3:ALARM
Figure 4-26. Deactivate Scanner Address Compare
Field Explanation for the Scanner Address Compare Screen
1 SELECT/RELEASE I
2 DUHP/IHL I
3 HODE CONTROL I
4 D/ALT STORE I
5 D/ALT BLOCKS I
6 D/ALT LSR I
7 D/ALT XREG I
8 ADDRESS COMPARE I
9 CHK-POINT TRACE I
10 D/ALT HPTSS/ESSI
===>
- ENTER A TO ACTIVATE AC OR D TO DEACTIVATE
==>
- ENTER HALF~/oRD STORAGE ADDRESS (0000 TO FFFF)
==>
- SELECT 1 TO 4 STORAGE ACCESSES (F, S, R, W)
==>
F = I-FETCH OR DATA LOAD S = DATA STORE
R = CYCLE STEAL READ
W
=
CYCLE STEAL WRITE
- SELECT ONE SCANNER ACTION (1, 2, 3, 4, 5)
==>
1
=
NO ACTION 2
=
START DELAYED DISPLAY
3 = START DELAYED ALTER 4
=
STOP SCANNER
5
=
STOP SCANNER BUT LEAVE AC ACTIVE
Fl:END F2:MENU2 F3:ALARM
Figure 4-27. Deactivate Scanner Address Compare
STORAGE ACCESSES: When the storage address specified on the screen is
detected during the operation selected among the following, the
address compare is successful.
F Address detected during I-fetch or load
S Address detected during store
R Address detected during cycle steal read
W Address detected during cycle steal write
4-18
3745 Communication Controller