The dives operates at sustained synchronous DMA burst timing specifi-
cations, as shown below.
Time
Description
Mode 0
Mode 1
Mode 2
Tcyc
Cycle time
114 nsec
75 nsec
55 nsec
T2cyc Two cycle times
235 nsec
156 nsec
117 nsec
Tds
Data setup time
(at receiver)
15 nsec
10 nsec
7 nsec
Tdh
Data hold time
(at receiver)
5 nsec
5 nsec
5 nsec
Tdvs
Data valid setup
time (at sender)
70 nsec
48 nsec
34 nsec
Tdvh
Data valid hold time
(at sender)
6 nsec
6 nsec
6 nsec
Note. Mode values show the minimum time only.
Tds
Tdh
Tdh
Strobe at
Sender
T2cyc
Tcyc
Tcyc
Tdvh
Tdvs
Tdvs
T2cyc
Data at
Sender
Strobe at
Receiver
Data at
Receiver
Tdvh
Tdvh
Tdh
Tds
Figure 11. Sustained Synchronous DMA burst
40
Medalist Pro 6450/6451 Product Manual, Rev. B
Содержание ST36450A
Страница 2: ......
Страница 8: ...vi Medalist Pro 6450 6451 Product Manual Rev B ...
Страница 32: ...24 Medalist Pro 6450 6451 Product Manual Rev B ...
Страница 49: ......
Страница 50: ......
Страница 51: ......