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ISP1583 데이터시트(PDF) 55 Page - NXP Semiconductors |
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ISP1583 데이터시트(HTML) 55 Page - NXP Semiconductors |
55 / 100 page ISP1583_7 © NXP B.V. 2008. All rights reserved. Product data sheet Rev. 07 — 22 September 2008 54 of 99 NXP Semiconductors ISP1583 Hi-Speed USB peripheral controller In 8-bit bus mode, 16-bit Task File register 1F0 requires two consecutive write/read accesses before the proper PIO write/read is generated on the IDE interface. The first byte is always the lower byte (LSByte). Other Task File registers can directly be accessed. Writing to Task File registers can be done in any order, except for the Task File register 1F7, which must be written last. Table 62. Task File 1F0 register (address: 40h): bit allocation CS1_N = HIGH, CS0_N = LOW, DA2 = LOW, MODE0/DA1 = LOW, BUS_CONF/DA0 = LOW. Bit 7 6 5 4 3 2 1 0 Symbol data (ATA or ATAPI) Reset 00000000 Bus reset 00000000 Access R/W R/W R/W R/W R/W R/W R/W R/W Table 63. Task File 1F1 register (address: 48h): bit allocation CS1_N = HIGH, CS0_N = LOW, DA2 = LOW, MODE0/DA1 = LOW, BUS_CONF/DA0 = HIGH. Bit 7 6 5 4 3 2 1 0 Symbol error/feature (ATA or ATAPI) Reset 00000000 Bus reset 00000000 Access R/W R/W R/W R/W R/W R/W R/W R/W Table 64. Task File 1F2 register (address: 49h): bit allocation CS1_N = HIGH, CS0_N = LOW, DA2 = LOW, MODE0/DA1 = HIGH, BUS_CONF/DA0 = LOW. Bit 7 6 5 4 3 2 1 0 Symbol sector count (ATA) or interrupt reason (ATAPI) Reset 00000 0 0 0 Bus reset 00000 0 0 0 Access R/W R/W R/W R/W R/W R/W R/W R/W Table 65. Task File 1F3 register (address: 4Ah): bit allocation CS1_N = HIGH, CS0_N = LOW, DA2 = LOW, MODE0/DA1 = HIGH, BUS_CONF/DA0 = HIGH. Bit 7 6 5 4 3 2 1 0 Symbol sector number/LBA[7:0] (ATA), reserved (ATAPI) Reset 000000 0 0 Bus reset 000000 0 0 Access R/W R/W R/W R/W R/W R/W R/W R/W Table 66. Task File 1F4 register (address: 4Bh): bit allocation CS1_N = HIGH, CS0_N = LOW, DA2 = HIGH, MODE0/DA1 = LOW, BUS_CONF/DA0 = LOW. Bit 7 6 5 4 3 2 1 0 Symbol cylinder low/LBA[15:8] (ATA) or cylinder low (ATAPI) Reset 00000000 Bus reset 00000000 Access R/W R/W R/W R/W R/W R/W R/W R/W |
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