Digital Equipment VAXstation I Service Manual page 25

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·.'-._
\"'--
SYSTEM CONFIGURATION
Table 1-5:
MSVll·OA Jumper Pairs
+· .. - ...... - ..... - . - - ·+· .. - ....••.. - •. ·+- - - - • - - ·+· - - ... - ·+
i
FUNCTION
I
SELECTION
I
JUMPER
l
STATUS
i
+· - - • - . - ........... - - -+- .. - ..• - •.••. - - -+- - .... - -+- - - .. - • -+
MEMORY TYPE
i CSR PARITY
A
OUT
I
*
B
IN
I
+·. - •.. - ... - - ..• ·+· - - •... ·+· ... - ••
·+
! NON-PARITY
A
IN
B
OUT
+· •.......•..•• - ...••
·+· .. - .. - - .... - ..
-+- - ••..•
·+. - - - ... ·+
PARITY ERROR ENABLE ;
ENABLE
H
IN
:*
;
J
OUT
+· ..... - .... - ... ·+- - .. - . - ·+· ...... ·+
! DISABLE
H
OUT
I
J
IN
+- .......... - - - ....•• -+· •.• - .••.•••... ·+· - . - ... ·+· ...... ·+
; CSR MEMORY TYPE
I 22 bit
CSR
K
OUT . i
*
I
L
IN
I
+·. - - - .. - . - .. - .. ·+- .....• ·+· .. - - . - ·+
I
18
bit
CSR
I
K
IN
I
L
OUT
+· ................... ·+· ........... - .. ·+· ...... ·+· .. - ... ·+
I/0 PAGE SIZE
i
4 k
WORD
I
C
IN
I*
I
D
OUT
I
+················+·-······+········+
i
2 k
WORD
i
C
OUT
0
IN
i
+-····················+················+········+········+
BLOCK MODE
,
ENABLE
!
Wl
IN
i
*
W2
OUT
+ . . . . • . - - . - ••• - - •
+ - •• - •••
·+ . . • . - . . -
+
DISABLE
Wl
OUT
W2
IN
+·····················+················+········+······-·+
WRITE WRONG PARITY
FROM CSR
WS
OUT
*
W6
IN
+ •..••.••••• - - ••
-+ - - .• - - • -
+ .• - ••• - • +
; FROM
BOAL<l6>
WS
IN
W6
OUT
+··········I-··········+················+········+········+
* VAXstation I position
For more information on the MSVll·QA
memory,
see
the
MSVll·QA
[TBS] ,
[TBS
I .
1-13

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