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C141-E035-02EN5 - 8
IMPORTANT
1. Set the SCSI ID so that there are no duplicates between SCSI devices
on the same SCSI bus.
2. The priority of SCSI bus use in ARBITRATION phase is determined by
SCSI ID as follows:
7 > 6 > 5 > 4 > 3 > 2 > 1 > 0 > 15 > 14 > 13 > 12 > 11 > 10 > 9 > 8
5.3.2 Each mode setting
(1) Setting terminal power supply
Refer to Table 5.2 for controlling the supply of power from the drive to the SCSI terminal
resistance power source (TERMPOW). However, this setting may not be used with SCA2
type 16 bit-SCSI (MAx3xxxSC). For information on MAx3xxxSP, refer to Figures 5.2 and
5.3.
Table 5.2 Setting SCSI terminal power supply (single-ended 16-bit SCSI model: MAx3xxxSP)
Supply on/off of SCSI terminating resistor power from IDD CN6 1-2
Supply off Open
Supply on Short (*1)
*1 Setting at factory shipment
(2) Motor start mode
Set how to control the starting of the IDD spindle motor according to Table 5.3. This setting
only determines the operation mode when the power supply is turned on or the microcode is
downloaded. In both modes, stopping or restarting the spindle motor can be controlled by
specifying the START/STOP UNIT command.
This setting is not provided for SCA2 type 16-bit SCSI model (MAx3xxxSC).
For information on MAx3xxxSP, refer to Figures 5.2 and 5.3.
Table 5.3 Motor start mode setting (single-ended 16-bit SCSI model: MAx3xxxSP)
Start timing of the spindle motor CN6 3-4
Starting of the motor is controlled with the START/STOP UNIT command. Open
The motor is started immediately after the power supply is turned on or the
microcode is downloaded.
Short (*1)
*1 Setting at factory shipment
Refer to Chapter 3 of the SCSI Logical Interface Specifications for details of the
START/STOP UNIT command.