w83c554f Winbond Electronics Corp America, w83c554f Datasheet - Page 43

• Manufacturer Part Number: w83c554f
• Description: System I/o Controller With Pci Arbiter & Ultradma/33 Ide Controller
• Manufacturer: Winbond Electronics Corp America

W83C554F
System Architecture
3.14.2
PCI Disconnect Without Data Transfer
The Disconnect Without Data Transfer command cycle of Figure 3-10 shows a target disconnect when no data is transferred.
STOP# is asserted without TRDY# being asserted at the same time. The W83C554F terminates the current transfer with de-
assertion of FRAME#, and the de-assertion of IRDY#, at which point it releases the bus. The W83C554F will re-request the
bus after two clock cycles if more data is to be transferred. The starting address of the new transfer will be the address of the
next un-transferred data (i.e. the address that the data would have been transferred to had the disconnect not occurred).
Figure 3-10. Disconnect Without Data Transfer
WINBOND ELECTRONICS CORP. AMERICA
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