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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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LPC47M14X 데이터시트(PDF) 96 Page - SMSC Corporation |
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LPC47M14X 데이터시트(HTML) 96 Page - SMSC Corporation |
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96 / 205 page  SMSC DS – LPC47M14X Page 96 Rev. 03/19/2001 System Interface Pins Table 48 gives the state of the interface pins in the powerdown state. Pins unaffected by the powerdown are labeled “Unchanged.” Table 48 – State of System Pins in Auto Powerdown SYSTEM PINS STATE IN AUTO POWERDOWN LAD[3:0] Unchanged LDRQ# Unchanged LPCPD# Unchanged LFRAME# Unchanged PCI_RESET# Unchanged PCI_CLK Unchanged SER_IRQ Unchanged FDD Interface Pins All pins in the FDD interface, which can be connected directly to the floppy disk drive itself, are either DISABLED or TRISTATED. Pins used for local logic control or part programming are unaffected. Table 49 depicts the state of the floppy disk drive interface pins in the powerdown state. Table 49 – State of Floppy Disk Drive Interface Pins in Powerdown FDD PINS STATE IN AUTO POWERDOWN INPUT PINS nRDATA Input nWRTPRT Input nTRK0 Input nINDEX Input nDSKCHG Input OUTPUT PINS nMTR0 Tristated nDS0 Tristated nDIR Active nSTEP Active nWDATA Tristated nWGATE Tristated nHDSEL Active DRVDEN[0:1] Active |
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