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Figure 9-35 – AMD Geode SC1201 User Manual

Page 414

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414

AMD Geode™ SC1200/SC1201 Processor Data Book

Electrical Specifications

32579B

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

t

RP

IDE_DATA[15:0]

(host)

t

RFS

t

SR

IDE_IOR0#
(HSTROBE0#)
(host)

IDE_DACK0#
(host)

IDE_DREQ0
(device)

IDE_IOW0# (STOP0#)
(host)

IDE_IORDY0# (DDMARDY0#)
(device)

Notes:

1)

The device can de-assert IDE_DREQ[0:1] to request termination of the UltraDMA burst no sooner than t

RP

after

IDE_IORDY[0:1]# (DDMARDY[0:1]#) is de-asserted.

2)

If the t

SR

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

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