Hitachi HUS103014FL3800 Computer Drive User Manual


 
Drawing No. Sheet No. Revision
K6610091 36/43 2005/2/23
Table 11.4 Pin assignment of SCSI Bus Connector C1 (SCA-2, LVD mode)
Signal Name Connector contact No. Signal Name
12V 1 41 GND(12V Return)
12V 2 42 GND(12V Return)
12V 3 43 GND(12V Return)
12V 4 44 MATED1 (Note 2)
Open 5 45 Open
Open 6 46 DIFFSENS
-DB(11) 7 47 +DB(11)
-DB(10) 8 48 +DB(10)
-DB(9) 9 49 +DB(9)
-DB(8) 10 50 +DB(8)
-I/O 11 51 +I/O
-REQ 12 52 +REQ
-C/D 13 53 +C/D
-SEL 14 54 +SEL
-MSG 15 55 +MSG
-RST 16 56 +RST
-ACK 17 57 +ACK
-BSY 18 58 +BSY
-ATN 19 59 +ATN
-DB(P0) 20 60 +DB(P0)
-DB(7) 21 61 +DB(7)
-DB(6) 22 62 +DB(6)
-DB(5) 23 63 +DB(5)
-DB(4) 24 64 +DB(4)
-DB(3) 25 65 +DB(3)
-DB(2) 26 66 +DB(2)
-DB(1) 27 67 +DB(1)
-DB(0) 28 68 +DB(0)
-DB(P1) 29 69 +DB(P1)
-DB(15) 30 70 +DB(15)
-DB(14) 31 71 +DB(14)
-DB(13) 32 72 +DB(13)
-DB(12) 33 73 +DB(12)
5V 34 74 MATED2 (Note 2)
5V 35 75 GND(5V Return)
5V 36 76 GND(5V Return)
Reserved 37 77 LED(with 0 ohm)
AUTO START (Note 1) 38 78 -DELAY START (Note 1)
-ID0 (Note 1) 39 79 -ID1 (Note 1)
-ID2 (Note 1) 40 80 -ID3 (Note 1)
Note 1 When this signal is held to ground, it is regarded as LOW. When this signal is
open, it is regarded as HIGH. It can be driven by open collector driver.
Do not pull up this signal.
Note 2 The MATED2 signal is tied to ground, and the MATED1 signal is pulled up to
HIGH level in the drive. When the drive detects the MATED1 signal is held to
LOW, the drive regards the connection has completed. When the drive detects
the MATED1 signal is held to HIGH, it regards the connection is incomplete.