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HP 27130A
The 4K by 8 EPROMs and 2K by 8 static RAMs are 24-pin packages and are installed to the back of
the sockets (pins 1, 2, 27, and 28 are not used).
Tables 3-1 and 3-2 show the settings of WI for different types of EPROMs/RAMs.
64K
FFFFH
I-
-
DFFFH
48K
-
64K
-
8FFFH
DYNAMIC
RAM
-
-
9FFFH
(48K USED)
32K
-
-
7FFFH
-
-
5FFFH
16K
3FFFH
4K. 8K EPROM
8K
2K. 8K STATIC RAM
1FFFH
4K. 8K EPROM
OOOOH
MEMORY MAp·
Figure 3-2. Memory Map
3-4
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