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HFDOM44KRXXX Datasheet(PDF) 11 Page - Hanbit Electronics Co.,Ltd |
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HFDOM44KRXXX Datasheet(HTML) 11 Page - Hanbit Electronics Co.,Ltd |
11 / 30 page HANBit HFDOM44KRxxx URL:www.hbe.co.kr 11 / 30 HANBit Electronics Co., Ltd. Rev. 1.0 (December, 2004) for any CompactFlash Storage Card data access for the subsequent command. BIT DESCRIPTION - CHS 7 6 5 4 3 2 1 0 Sector (7: 0) LBA 7 6 5 4 3 2 1 0 LBA (7 : 0) 6) Cylinder Low (LBA 15-8 )Register (Address–1F4h[174h];Offset 4) This register contains the low order 8 bits of the starting cylinder address or bits 15-8 of the Logical Block Address. DIT DESCRIPTION- CHS 7 6 5 4 3 2 1 0 Cylinder ( 7: 0 ) LBA 7 6 5 4 3 2 1 0 LBA ( 15 : 8 ) 7) Cylinder High(LBA 23–16)Register(Address–1F5h[175h]; Offset 6) This register contains the high order bits of the starting cylinder address or bits 23-16 of the Logical Block Address. BIT DESCRIPTION- CHS 7 6 5 4 3 2 1 0 Cylinder ( 15 :8 ) LBA 7 6 5 4 3 2 1 0 LBA ( 23 : 16 ) 8) Status/Alternate Status Register(Address 1F7h[177h]/3F6h[376h];Offset 7/ Eh) These registers return the CompactFlash Storage Card status when read by the host. Reading the Status register does clear a pending interrupt, while reading the Alternate Status register does not. The status bits are described as follows: D7 D6 D5 D4 D3 D2 D1 D0 BUSY RDY DWF DSC DRQ CORR 0 ERR Status & Alternate Status Register Bit 7 (BUSY): the busy bit is set when the CompactFlash Storage Card has access to the command buffer and registers and the host is locked out from accessing the command register and buffer. No other bits in this register are valid when this bit is set to a 1. Bit 6 (DRDY): DRDY indicates whether the device is capable of performing CompactFlash Storage Card operations. This bit is cleared at power up and remains cleared until the CompactFlash Storage Card is ready to |
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