Drive Address Setting; Drive Default Address Setting; Figure 48. Drive Address Setting - Hitachi IC25N040ATCS04-0 - Travelstar 40GN 40GB UDMA/100 4200RPM 2MB 2.5" IDE Hard Drive Specifications

7.10 Drive address setting

A jumper placed on the interface connector determines the drive address. The three drive addresses are
shown below.

Figure 48. Drive address setting

Setting 1—Device 0 (Master) (no jumper is used)
Setting 2—Device 1 (Slave)
Setting 3—Cable Select
Setting 4—Never attach a jumper here
Setting 5—Never attach a jumper here
When pin C is grounded, the drive does not spin up at POR.
When the drive address is Cable Select, the address depends on the condition of pin 28 of the AT inter-
face cable. If pin 28 is ground (or low), the drive is a Master. If pin 28 is open (or logic high), the drive is a
Slave.

7.10.1 Drive default address setting

The default setting of jumper at shipment is Setting 1: no jumper.
1 2
Hitachi Travelstar 60GH & 40GN hard disk drive specifications
3 1
4 2
3 4 5
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