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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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CS5535 датащи(PDF) 320 Page - National Semiconductor (TI) |
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CS5535 датащи(HTML) 320 Page - National Semiconductor (TI) |
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320 / 555 page  www.national.com 320 Revision 0.8 5.7 FLOPPY PORT REGISTER DESCRIPTIONS The registers for the Floppy Port are divided into two sets: • Standard GeodeLink Device MSRs (Shared with DIVIL, see Section 5.6.1 "Standard GeodeLink Device MSRs" on page 299.) • Floppy Port Specific MSRs The MSRs are accessed via the RDMSR and WRMSR pro- cessor instructions. The MSR address is derived from the perspective of the CPU Core. See Section 3.2 "CS5535 MSR Addressing" on page 53 for more details on MSR addressing. All MSRs are 64 bits, however, the Floppy Port Specific MSRs are called out as 8 bits. The Floppy Port treats writes to the upper 56 bits (i.e., bits [63:8]) of the 8-bit MSRs as don’t cares and always returns 0 on these bits. Table 5-19 summarizes the Floppy Port Specific MSRs. The reference column in the tables point to the page where the register maps and bit descriptions are listed. Table 5-19. Floppy Port Specific MSRs Summary MSR Address Type Register Name Reset Value Reference 51400030h RO Floppy Port 3F2h Shadow (FLPY_3F2_SHDW) xxh Page 321 51400031h RO Floppy Port 3F7h Shadow (FLPY_3F7_SHDW) xxh Page 321 51400032h RO Floppy Port 372h Shadow (FLPY_3F2_SHDW) xxh Page 322 51400033h RO Floppy Port 377h Shadow (FLPY_377_SHDW) xxh Page 322 |
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