參數(shù)資料
型號(hào): SAA7381
廠商: NXP SEMICONDUCTORS
元件分類: 消費(fèi)家電
英文描述: ATAPI CD-R block decoder
中文描述: SPECIALTY CONSUMER CIRCUIT, PQFP144
文件頁數(shù): 82/108頁
文件大?。?/td> 380K
代理商: SAA7381
1997 Aug 12
82
Philips Semiconductors
Objective specification
ATAPI CD-R block decoder
SAA7381
Fig.17 Multi-word DMA timing.
(1) This signal may be negated by the host to suspend the DMA transfer in progress. For multi-word DMA transfers, the device may negate DMARQ
within the t
or t
specified time once DMACK is asserted and reassert it again at a later time to resume the DMA operation.
Alternatively, if the device is able to continue the transfer of data, the device may leave DMARQ asserted and wait for the host to reassert DMACK.
handbook, full pagewidth
MGK522
DMARQ
DMACK
DIOR/DIOW
read DD0 to DD15
write DD0 to DD15
Tcy
tW(DIOR/DIOW)
tWneg(DIOR)
th(DIOR)
tWneg(DIOW)
tsu(DIOW)
th(DIOW)
tACC(DIOR)
tsu(DMACK-DIOR/DIOW)
td(DMACK-z)
th(DIOR/DIOW-DMACK)
td(DIOR-DMARQ)
(1)
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