Hitachi 7K100 Hard Drive Specifications - Page 65
Drive address setting
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7.10 Drive address setting A jumper placed on the interface connector determines the drive address. Three drive addresses are shown below. Two addresses require the setting of a jumper. 31 42 1 2 3 4 5 Figure 1 : Drive address setting Setting 1-Device 0 (Master) (no jumper is used) Setting 2-Device 1 (Slave) Setting 3-Cable Select Setting 4-Do not attach a jumper here Setting 5-Do not attach a jumper here The default setting at shipment is Setting 1 (no jumper). 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 interface 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. Travelstar 7K100 Hard Disk Drive Specification 51