SC2200 NSC [National Semiconductor], SC2200 Datasheet - Page 398

• Manufacturer Part Number: SC2200
• Description: Thin Client On a Chip
• Manufacturer: NSC [National Semiconductor]

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Electrical Specifications
All timing parameters are measured at the connector of the device to which the parameter applies. For example, the sender
stops generating STROBE edges t
are taken at the connector of the sender.
Note:
IDE_REQ0
(device)
IDE_DACK0#
(host)
IDE_IOW0#
(STOP0)
(host)
IDE_IOR0#
(HDMARDY0#)
(host)
IDE_IRDY0 (DSTROBE0)
(device)
IDE_ADDR[2:0]
IDE_DATA[15:0]
IDE_CS[0:1]
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.
Figure 8-27. Initiating an UltraDMA Data in Burst Timing Diagram
t
UI
t
t
ACK
RFS
ACK
(Continued)
t
ACK
after the negation of DMARDY. Both STROBE and DMARDY timing measurements
t
ZIORDY
t
AZ
t
t
ENV
ENV
398
t
t
ZAD
ZAD
t
t
FS
FS
t
DVS
t
DVH
Revision 3.0