Table of Contents
Advertisement
Installation
SCSI ID Pin Assignments (SCA-2 Connector Versions of the Disk Drive)
Table 3-2
SCSI ID
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Note:
3.4.3.3
Spin Up for the 80-Pin SCA-2 Connector Versions
Maxtor Atlas 15K drives have three Spin Up modes:
Option 1
Option 2
Option 3
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.
3-12
Maxtor Atlas 15K
Location on SCA Connector
ID3 - Pin 80
ID2 - Pin 40
0
0
0
0
0
0
0
0
0
1
0
1
0
1
0
1
1
0
1
0
1
0
1
0
1
1
1
1
1
1
1
1
0 indicates an open circuit from +2.4 V to Vcc +0.5 V, and 1 in-
dicates ground from 0.5 V to +0.4 V.
Spin up occurs immediately when power is applied.
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.
Drive spin up is controlled by the START STOP UNIT command.
ID1 - Pin 79
ID0 - Pin 39
0
0
0
1
1
0
1
1
0
0
0
1
1
0
1
1
0
0
0
1
1
0
1
1
0
0
0
1
1
0
1
1
Advertisement
Table of Contents
