IBM DDRS-39130 - Ultrastar 9.1 GB Hard Drive Specifications page 176

9.1.2.2 Synchronous Negotiation Started by the Target
If the file recognizes that negotiation is required, the file sends a SDR message to the initiator with minimum
transfer period on the current receiver mode. The file interprets the Initiator corresponding transfer period as
shown in the following figure Figure 129 on page 166:
9.1.2.2.1 On LVD receiver mode.
Target
Initiator's Transfer
Response Period
0 <= Mi <= 09 Send Message Reject(Async mode)
10 <= Mi <= 10
11 <= Mi <= 11
12 <= Mi <= 12
13 <= Mi <= 18
19 <= Mi <= 25 100 nSec
26 <= Mi <= 31 125 nSec
32 <= Mi <= 37 150 nSec
38 <= Mi <= 43 175 nSec
44 <= Mi <= 50 200 nSec
51 <= Mi <= 56 225 nSec
57 <= Mi <= 62 250 nSec
63 <= Mi <= 68 275 nSec
69 <= Mi <= 75 300 nSec
76 <= Mi <= 81 325 nSec
82 <= Mi <= 87 350 nSec
88 <= Mi <= 93 375 nSec
94 <= Mi <= 100 400 nSec
101 <= Mi <= 106 425 nSec
107 <= Mi <= 255 Send Message Reject(Async mode)
Figure 129. Target Response to Initiator's Transfer Period(LVD mode)
9.1.2.2.2 F-20 mode.
166
O E M Spec. of DDRS-3xxxx
25 nSec
50 nSec
50 nSec
75 nSec
Maximum
Burst
Rate
N/A
40.00 MT/s
20.00 MT/s
20.00 MT/s
13.33 MT/s
10.00 MT/s
8.00 MT/s
6.67 MT/s
5.71 MT/s
5.00 MT/s
4.44 MT/s
4.00 MT/s
3.64 MT/s
3.33 MT/s
3.08 MT/s
2.86 MT/s
2.67 MT/s
2.50 MT/s
2.35 MT/s
N/A