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•
NAME
SIZE
MFGR.
*
PINS
JUMPERING
Wl, 6
W2, 7
W3, 8
W4, 9
411343256A
32K
NEC
28
**
5/6, 8/9
Open
3/5, +
MSM51257(L)RS
32K
OKI
28
**
5/6, 8/9
Open
3/5, +
TC55257AP(L)
32K
Toshiba
28
**
5/6, 8/9
Open
3/5, +
HM62256
32K
Hitachi
28
**
5/6, 8/9
Open
3/5, +
HM628128
128K
Hitachi
32
**
4/7, 5/6,
Open
3/5, +
8/9
HM628512
512K
Hitachi
32
**
1/2, 4/7,
Open
1/8, +
5/6, 8/9
NOTES
* o r equivalent
** 1 / 2 for software controlled write enable; 2/3 for writing always enabled
+ 2 / 4 connects back-up battery; 4 / 6 if back-up battery is not desired
NAME
SIZE
MFGR.
*
PINS
JUMPERING
Wl, 6
W2, 7
W3, 8
W4, 9
DS1235Y
DS1245Y
32K
128K
Dallas
Dallas
28
32
**
**
5/6, 8/9
5/6, 8/9,
4/7
Open
Open
3/5, 4/6
3/5, 4/6
NOTES
* o r equivalent
** 1 / 2 for software controlled write enable; 2/3 for writing always enabled
•
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XVME-956 Manual
August 1994
Table 5-7. SRAM Jumpering
To install NOVRAM devices, jumper the byte-wide sockets according to the contents of Table 5-8,
then plug in the devices. N O V R A M devices contain batteries, therefore, off-board batteries are not
required.
Table 5-8. N O V R A M Jumpering
5-9