Figure 11. Sustained Synchronous Dma Burst - Seagate Medalist Pro Family Product Manual

40 Medalist Pro 6450/6451 Product Manual, Rev. B
The dives operates at sustained synchronous DMA burst timing specifi-
cations, as shown below.
Strobe at
Sender
Data at
Sender
Tdvh
Tcyc
Strobe at
Receiver
Data at
Receiver
Tdh

Figure 11. Sustained Synchronous DMA burst

Time Description
Tcyc Cycle time
T2cyc Two cycle times
Data setup time
Tds
(at receiver)
Data hold time
Tdh
(at receiver)
Data valid setup
Tdvs
time (at sender)
Data valid hold time
Tdvh
(at sender)
Note. Mode values show the minimum time only.
Tdvs Tdvs
Tdvh
Tcyc
T2cyc
T2cyc
Tds
Tds
Tdh
Mode 0 Mode 1
114 nsec 75 nsec
235 nsec 156 nsec
15 nsec 10 nsec
5 nsec 5 nsec
70 nsec 48 nsec
6 nsec 6 nsec
Tdvh
Tdh
Mode 2
55 nsec
117 nsec
7 nsec
5 nsec
34 nsec
6 nsec