32579B

Electrical Specifications

 

 

tRP

IDE_DREQ0 (device)

IDE_DACK0# (host)

IDE_IOW0# (STOP0#) (host)

IDE_IORDY0# (DDMARDY0#)

 

tSR

 

 

 

tRFS

(device)

 

 

IDE_IOR0#

 

 

 

(HSTROBE0#)

 

 

 

(host)

 

 

 

IDE_DATA[15:0] (host)

Notes:

1)The device can de-assert IDE_DREQ[0:1] to request termination of the UltraDMA burst no sooner than tRP after IDE_IORDY[0:1]# (DDMARDY[0:1]#) is de-asserted.

2)If the tSR timing is not satisfied, the device may receive up to two additional datawords from the host.

Figure 9-35. Device Pausing an UltraDMA Data Out Burst Timing Diagram

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AMD Geode™ SC1200/SC1201 Processor Data Book

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Image 414
AMD SC1200, SC1201 manual IDEDREQ0 device IDEDACK0# host IDEIOW0# STOP0# host, IDEIORDY0# DDMARDY0#, IDEIOR0# HSTROBE0#, 414