HP 9030 - Page 33

MAPPER CAM
CS
REGISTER
SELECTED
ADDRESS
ROW
0
3
1
3
2
3
3
3
4
5
6
7
8
9
2
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
0
26
27
28
29
30
31
Y ADDRESS
SELECTED
BLOCK
NUMBER
0
1
2
3
0
1
2
3
0
2
3
0
1
2
3
Theory of Operation 2-15
4K WORDS
4K WORDS
4K WORDS
4K WORDS
:SOETO {I
4K WORDS
4K WORDS
4K WORDS
4K WORDS
:S~TO {I
4K WORDS
4K WORDS
4K WORDS
4K WORDS
4K WORDS
X AND Y ADDRESS SELECTS WORD
WITHIN THE BLOCK
4K
BYTES
4K
BYTES
4K
BYTES
4K BYTES
16K BYTE
RAM
16K BYTE
RAM
4K BYTES
4K BYTES
4K BYTES
4K
BYTES
16K BYTE
RAM
16K BYTE
RAM
4K
BYTES
4K BYTES
4K BYTES
4K BYTES
16K BYTE
RAM
16K BYTE
RAM
4K WORDS 16K BYTE 16K BYTE
RAM
16K BYTE
RAM
4K WORDS
4K WORDS
RAM
4K BYTES
4K BYTES
4K BYTES
4K
BYTES
16K BYTE
RAM
16K BYTE
RAM
16K BYTE
RAM
Figure 2-6. 256K Memory Mapping Organization