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Memory Areas Section 3-6
3-6 Memory Areas
The CPU Bus Unit Area and part of the DM Area in the CPU Unit are used to
write or read the status of the nodes and the data links of SYSMAC LINK
Units. The data from the SYSMAC LINK Unit is written to the input words in
these areas.
3-6-1 Word Allocations
The memory areas that are used to write or read the data will be allocated
according to the unit number.
CPU Bus Unit Area Each CPU Bus Unit is allocated 25 words from between CIO 1500 and
CIO 1899 as follows:
DM Area Each CPU Bus Unit is also allocated 100 words from between D30000 and
D31599 as follows:
Unit No. Words Unit No. Words
0 CIO 1500 to CIO 1524 8 CIO 1700 to CIO 1724
1 CIO 1525 to CIO 1549 9 CIO 1725 to CIO 1749
2 CIO 1550 to CIO 1574 10 CIO 1750 to CIO 1774
3 CIO 1575 to CIO 1599 11 CIO 1775 to CIO 1799
4 CIO 1600 to CIO 1624 12 CIO 1800 to CIO 1824
5 CIO 1625 to CIO 1649 13 CIO 1825 to CIO 1849
6 CIO 1650 to CIO 1674 14 CIO 1850 to CIO 1874
7 CIO 1675 to CIO 1699 15 CIO 1875 to CIO 1899
Unit No. Words Unit No. Words
0 D30000 to D30099 8 D30800 to D30899
1 D30100 to D30199 9 D30900 to D30999
2 D30200 to D30299 10 D31000 to D31099
3 D30300 to D30399 11 D31100 to D31199
4 D30400 to D30499 12 D31200 to D31299
5 D30500 to D30599 13 D31300 to D31399
6 D30600 to D30699 14 D31400 to D31499
7 D30700 to D30799 15 D31500 to D31599