Electrical Specifications

32579B

 

 

IDE_CS[1:0]#

tM

 

t0

tN

 

 

 

 

 

 

IDE_DREQ0

tL

IDE_DACK0#

tI

t

D

t

K

tj

 

 

 

 

IDE_IOR0#

IDE_IOW0#

tE

tZ

IDE_DATA[15:0]

tG tF

IDE_DATA[15:0]

tGtH

Notes:

1)For Multiword DMA transfers, the Device may negate IDE_DREQ[0:1] within the tL specified time once IDE_DACK[0:1 is asserted, and reassert it again at a later time to resume the DMA operation. Alternatively, if the device is able to co tinue the transfer of data, the device may leave IDE_DREQ[0:1] asserted and wait for the host to reasse IDE_DACK[0:1]#.

2)This signal can be negated by the host to Suspend the DMA transfer in process.

Figure 9-27. Multiword DMA Data Transfer Timing Diagram

AMD Geode™ SC1200/SC1201 Processor Data Book

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AMD manual IDECS10#, IDEDREQ0 IDEDACK0# IDEIOR0# IDEIOW0#, AMD Geode SC1200/SC1201 Processor Data Book 405