Hitachi ULTRASTAR 15K450 HUS154530VLF400 Specifications page 38

8 D9
9 D6
A D5
B D4
C D3
D D2
E D1
F CE
10 CD
11 CC
12 CB
13 CA
14 C9
15 C7
16 C6
17 C5
18 C3
19 BC
1A BA
1B B9
1C B6
1D B5
1E B4
1F B3
Note: All values are in hex format. An AL_PA value of 0x00 is not valid for an NL_Port. A SEL_ID of 0x7F forces the
drive to obtain a soft address.
7.1.6.3 P_ESI_n Function
The SEL_N (TTL compatible) I/O's (defined when -Parallel ESI is asserted) provide an interface between the enclosure and
the drive. When signals are defined as outputs, they are configured as open-drain drivers with 4mA sink capability.
When the drive asserts -Parallel ESI, it goes through a 'discovery' process (see SFF-8067) to determine the level of enclosure
service supported by the backplane. The outcome of the 'discovery' process is that the backplane:
1. Does not support enclosure services or
2. Supports SFF-8045 enclosure services or
3. Supports SFF-8067 enclosure services
The definition of the signals are summarized in the table below:
28 A7
29 A6
2A A5
2B A3
2C 9F
2D 9E
2E 9D
2F 9B
30 98
31 97
32 90
33 8F
34 88
35 84
36 82
37 81
38 80
39 7C
3A 7A
3B 79
3C 76
3D 75
3E 74
3F 73
Hitachi Ultrastar 15K450 (FC-AL) Hard Disk Drive Specification
48 67
49 66
4A 65
4B 63
4C 5C
4D 5A
4E 59
4F 56
50 55
51 54
52 53
53 52
54 51
55 4E
56 4D
57 4C
58 4B
59 4A
5A 49
5B 47
5C 46
5D 45
5E 43
5F 3C
22
68 2E
69 2D
6A 2C
6B 2B
6C 2A
6D 29
6E 27
6F 26
70 25
71 23
72 1F
73 1E
74 1D
75 1B
76 18
77 17
78 10
79 F
7A 8
7B 4
7C 2
7E 1
7E NA
7F -