GL811USB Просмотр технического описания (PDF) - Genesys Logic

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GL811USB

USB 2.0 to ATA / ATAPI Bridge Controller

Genesys Logic 

GL811USB – USB 2.0 to ATA / ATAPI Bridge Controller

6.4.2 Multiword DMA data transfer

Multiword DMA timing parameters

t0 Cycle time

tD DIOR_/ DIOW_ asserted pulse width

tE DIOR_ data access

tF DIOR_ data hold

tG DIOR_/ DIOW_ data setup

tH DIOW_ data hold

tI DMACK to DIOR_/ DIOW_ setup

tJ DIOR_/ DIOW_ to DMACK hold

tKR DIOR_ negated pulse width

tKW DIOW_ negated pulse width

tLR DIOR_ to DMARQ delay

tLW DIOW_ to DMARQ delay

tM CS(1:0) (max) valid to DIOR_/ DIOW_

tN CS(1:0) hold

tZ DMACK_ to read data released

Timing (ns)

120

80

-

-

40

18

18

20

36

36

-

-

36

18

-

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