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Siemens CPU 948 User Manual

Siemens CPU 948
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Contents of Chapter 8
8.1 Structure of the Memory Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 4
8.2 Memory Assignment in the CPU 948 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 5
8.2.1 Memory Assignment for the System RAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 6
8.2.2 Memory Assignment for the Peripherals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 8
8.3 User Memory Organization in the CPU 948. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 10
8.3.1 Block Headers in User Memory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 12
8.3.2 Block Address List in Data Block DB 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 13
8.3.3 RI/RJ Area. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 14
8.3.4 RS/RT Area. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 15
8.3.5 Bit Assignment of the System Data Words . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 18
8.3.6 Addressable System Data Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 42
8
Memory Assignment and
Memory Organization
CPU 948 Programming Guide
C79000-G8576-C848-04
8 - 1

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Siemens CPU 948 Specifications

General IconGeneral
BrandSiemens
ModelCPU 948
CategoryController
LanguageEnglish

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