3 spin up for the 80-pin sca-2 connector versions – Maxtor 10K V User Manual
Page 36
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
0
0
0
0
0
1
0
0
0
1
2
0
0
1
0
3
0
0
1
1
4
0
1
0
0
5
0
1
0
1
6
0
1
1
0
7
0
1
1
1
8
1
0
0
0
9
1
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