IBM DTLA-305040 Hard Drive Specifications - Page 148
Read Native Max Address F8h
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12.16 Read Native Max Address (F8h) Command Block Output Registers Register 7 6 5 4 3 2 1 0 Data Feature Sector Count Sector Number Cylinder Low Cylinder High Device/Head 1 L 1 D - - - - Command 1 1 1 1 1 0 0 0 Command Block Input Registers Register 7 6 5 4 3 2 1 0 Data Error see below Sector Count Sector Number V V V V V V V V Cylinder Low V V V V V V V V Cylinder High V V V V V V V V Device/Head - - - - H H H H Status see below Error Register 76543210 CRC UNC 0 IDN 0 ABT T0N AMN 00000V00 Status Register 7 6 5 4 3 2 10 BSY RDY DF DSC DRQ COR IDX ERR 0 V 0 - - 0 -V Figure 102. Read Native Max LBA/CYL (F8h) This command returns the native max LBA/CYL of the drive which is not effected by Set Max Address command. Input parameters from the device Sector Number In LBA mode this register contains native max LBA bits 0 - 7. (L=1) In CHS mode this register contains native max sector number. (L=0) Cylinder High/Low In LBA mode this register contains native max LBA bits 8 - 15 (Low), 16 - 23 (High). (L=1) In CHS mode this register contains native max cylinder number. (L=0) H In LBA mode this register contains native max LBA bits 24 - 27. (L=1) In CHS mode this register contains native max head number. (L=0) Deskstar 40GV & 75GXP hard disk drive specifications 136