Fujitsu MHT2030AT Manual Do Utilizador

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5.6  Timing
C141-E192-01EN
5-131
5.6.2 Multiword data transfer
Figure 5.10 shows the multiword DMA data transfer timing between the device
and the host system.
DMACK-
t
D
DIOR-/DIOW-
t
I
Symbol
Timing parameter
Min.
Max.
Unit
t0
Cycle time
  120
ns
tD
Pulse width of DIOR-/DIOW-
    70
ns
tE
Data Access time for DIOR-
50
ns
tF
Data hold time for DIOR-
      5
ns
tG
Data setup time for DIOR-/DIOW-
    20
ns
tH
Data hold time for DIOW-
    10
ns
tI
DMACK setup time for DIOR-/DIOW-
      0
ns
t
CS (1:0) Available time for DIOR-/DIOW-
25
ns
Figure 5.10 Multiword DMA data transfer timing (mode 2)