Specifications

10.1.2.2 Synchronous Negotiation started by the drive
If the drive recognizes that negotiation is required, it sends a SDR message to the initiator with minimum
transfer period on the current receiver mode. The drive interprets the initiator corresponding transfer
period as shown in the figure below.
LVD mode
Asynch
(Asynch mode)51 <= Mi <= 255
Fast-5
20026 <= Mi <= 50
Fast-10
10013 <= Mi <= 25
Fast-20
5011 <= Mi <= 12
Fast-40
2510 <= Mi <= 10
N/A
Send Mt = 10 to negotiate0<=Mi<= 09
Transfer RateTarget Transfer Period (ns)Initiator Request
Figure 181. Target Response to Initiator's Transfer Period (LVD mode)
SE Mode
Asynch(Asynch mode)51 <= Mi <= 255
Fast-520026 <= Mi <= 50
Fast-1010013 <= Mi <= 25
Fast-205012 <= Mi <= 12
N/ASend Mt = 12 to negotiate0<=Mi<= 11
Transfer RateTarget Transfer Period (ns)Initiator Request
Figure 182. Drive Response to Initiator's Transfer Period (SE mode)
Ultrastar 146Z10 hard disk drive specifications
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