Scsi Function Specifications; Scsi Function Specifications - Fujitsu MAH3091MC - Enterprise 9.1 GB Hard Drive Product/Maintenance Manual

2.2

SCSI Function Specifications

Table 2.3 shows the SCSI functions provided with the IDD.
Single-ended type
HVD type (High Voltage Differential)
LVD type (Low Voltage Differential)
Electrical
160/m LVD type (Low Voltage Differential)
requirements
Single-ended type
(*1)
Differential type
TERMPWR signal send function
68 pin P cable connector
Connector
80 pin SCA2 connector
Data bus parity (Data bus CRC)
Bus arbitration function
Disconnection/reconnection function
SCSI ID
Addressing
LUN (logical unit number)
Data transfer 8-bit SCSI (Single-Ended type)
(Synchronous
mode) 16-bit SCSI (Single-Ended type)
Data buffer
Data block length (Logical data length=Physical data length) (*2)
(*1)
Single-Ended and LVD detect the driver mode by Diffsence signal and automatically change.
(*2)
Refer to (12) of Section 1.1.
Table 2.3

SCSI function specifications

Item
Position where the terminating
resistor is mounted on the PCA
Position where the terminating
resistor is mounted on the PCA
16-bit SCSI
(LVD type)
(LVD type)
(160/m LVD type)
C141-E103-02EN
Specification
Ο
×
Ο
Ο
×
×
Ο
Ο
Ο
Ο
Ο
Ο
#0 to #15
(Jumper selection)
#0 fixed
Ο 20 MB/s max.
Ο 40 MB/s max.
Ο 40 MB/s max.
Ο 80 MB/s max.
Ο 160 MB/s max.
4 MB (MC/MP) programmable
multi-segment buffer (1 to 32)
512 to 528 bytes
(Fixed length)
Ο : Provided × : Not provided
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