Specifications

10.1.2.1 Synchronous Negotiation started by the Initiator
When the drive responds with REQ/ACK offset value of 0, the initiator shall use asynchronous data
transfer mode.
LVD mode. The drive responds to each Initiator requested transfer period as shown below.
Asynch(Asynch mode)Mt=5051 <= Mi <= 255
Fast-5200Mt=5026 <= Mi <= 50
Fast-10100Mt=2513 <= Mi <= 25
Fast-2050Mt=1211 <= Mi <= 12
Fast-4025Mt=1010 <= Mi <= 10
Fast-4025Mt=100<=Mi<= 09
Transfer Rate
Target Transfer
Period (ns)
Target
Response
Initiator Request
Figure 179. Initiator Request/Drive Response (LVD mode)
SE mode. The drive responds to each Initiator requested transfer period as shown below.
Asynch(Asynch mode)Mt=5051 <= Mi <= 255
Fast-5200Mt=5026 <= Mi <= 50
Fast-10100Mt=2513 <= Mi <= 25
Fast-2050Mt=1212 <= Mi <= 12
Fast-2050Mt=120<=Mi<= 11
Transfer Rate
Target Transfer
Period (ns)
Target
Response
Initiator Request
Figure 180. Initiator Request/Drive Response (SE mode)
Ultrastar 146Z10 hard disk drive specifications
179