410 AMD Geodeā„¢ SC2200 Processor Data Book
Electrical Specifications
32580B
All timing parameters are measured at the connector of the device to which the parameter applies. For example, the sender
stops generating STROBE edges tRFS after the negation of DMARDY. Both STROBE and DMARDY timing measurements
are taken at the connector of the sender.
Figure 9-27. Initiating an UltraDMA Data in Burst Timing Diagram
tUI
tACK tENV
tFS
tFS
tZAD
tACK
tZIORDY
tAZ
tACK
tDVS tDVH
t
ENV
tZAD
IDE_DATA[15:0]
IDE_ADDR[2:0]
IDE_CS[0:1]
IDE_REQ0
(device)
IDE_DACK0#
(host)
IDE_IOW0#
(STOP0)
(host)
IDE_IOR0#
(HDMARDY0#)
(host)
IDE_IRDY0 (DSTROBE0)
(device)
Note: The definitions for the IDE_IOW[0:1]# (STOP[0:1]), IDE_IOR[0:1]# (HDMARDY[0:1]#) and IDE_IRDY[0:1]
(DSTROBE[0:1]) signal lines are not in effect until IDE_REQ[0:1] and IDE_DACK[0:1]# are asserted.