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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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CIRCC датащи(PDF) 8 Page - SMSC Corporation |
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CIRCC датащи(HTML) 8 Page - SMSC Corporation |
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8 / 70 page  8 Table 6 - CIrCC-Specific Chip-Level Controls NAME SIZE (BITS) TYPE DESCRIPTION DMA Channel 4 Input ISA DMA Channel Number IRQ Level 4 Input ISA Interrupt Level Software Select A 8 Input Software Programmable Register A Software Select B 8 Input Software Programmable Register B DMA Channel 4 bit bus from a chip-level configuration register, used to identify the current CIrCC DMA channel number. The value appears in the upper nibble of CIrCC Register Block Three, Address Four. IRQ Level 4 bit bus from a chip-level configuration register, used to identify the current CIrCC IRQ level. The value appears in the lower nibble of CIrCC Register Block Three, Address Four. Software Select A/B The 8 bit Software Select A and Software Select B inputs come from software-only programmable chip-level configuration controls. The values on these buses appear in CIrCC Register Block Three, Addresses Five and Six. |
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