Hitachi HTS725050A9A364 Datasheet download pdf (Page 138)

7K500 OEM Specification

Page 138 of 176

02h

SET MAX LOCK

03h

SET MAX UNLOCK

04h

SET MAX FREEZE LOCK

When the Set Max ADDRESS command is executed, this register is

ignored.

Option bit for selection whether nonvolatile or volatile. B=0 is volatile

condition. When B=1, MAX LBA/CYL which is set by Set Max

ADDRESS command is preserved by POR. When B=0, MAX LBA/CYL

which is set by Set Max ADDRESS command will be lost by POR.

LBA Low

in LBA mode, this register contains LBA bits 0 - 7 which is to be

input.(L=1)

In CHS mode, this register is ignored. (L=0)

LBA High/Mid

In LBA mode, this register contains LBA bits 8 - 15 (Mid), 16 - 23 (High)

which is to be set. (L=1)

In CHS mode, this register contains max cylinder number which is to be

set. (L=0)

In LBA mode, this register contains LBA bits 24 - 27 which is to be

input.(L=1)

In CHS mode, this register is ignored. (L=0)

LBA mode.Indicates the addressing mode.L=0 specifies CHS mode and

L=1 does LBA addressing mode.

Input Parameters From The Device

LBA Low

In LBA mode, this register contains Adjusted max LBA bits 0 - 7.(L=1)

In CHS mode, this register contains max LBA Low(= 63). (L=0)

LBA High/Mid

In LBA mode, this register contains Adjusted max LBA bits 8 - 15 (Mid),

16 - 23 (High). (L=1)

In CHS mode, this register contains max cylinder number which is set.

(L=0)

In LBA mode, this register contains Adjusted max LBA bits 24 - 27. (L=1)

In CHS mode, this register contains max head number(= 15).(L=0)

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Hitachi HTS725050A9A364 Datasheet Page 138