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3-12 Maxtor Atlas 10K V
Table 3-2 SCSI ID Pin Assignments (SCA-2 Connector Versions of the Disk Drive)
Note: 0 indicates an open circuit and 1 indicates ground.
3.4.3.3 Spin Up for the 80-Pin SCA-2 Connector Versions
Maxtor Atlas 10K V drives have three Spin Up modes:
Option 1 Spin up occurs immediately when power is applied.
Option 2 Drive spin up occurs after a predetermined delay following power on.
Set the delay parameters with the MODE SELECT Command,
Maxtor (Vendor) Special Function Control Page (39h).The delay is
equal to a user-specified multiplier multiplied by the numerical SCSI
ID of the drive. This will give a staggered spin-up in multiple-drive
installations.
Option 3 Drive spin up is controlled by the START STOP UNIT command.
Configure the desired spin up option (Table 3-3) by setting the state of the
DELAY_SPIN (Pin 38) and STAGGER_SPIN (Pin 78) inputs on the 80-pin SCA-
2 connector (Figure 3-4). The states of these signals are set by using either hard-
wired connections at the backplane or backplane logic.
SCSI ID
Location on SCA Connector
ID3 - Pin
80
ID2 - Pin 40 ID1 - Pin 79 ID0 - Pin 39
00 0 0 0
10 0 0 1
20 0 1 0
30 0 1 1
40 1 0 0
50 1 0 1
60 1 1 0
70 1 1 1
81 0 0 0
91 0 0 1
10 1 0 1 0
11 1 0 1 1
12 1 1 0 0
13 1 1 0 1
14 1 1 1 0
15 1 1 1 1