CS5920 datasheet(143/160 Pages) AMCC

No. de pieza	CS5920

Descripción Electrónicos	Full 132 Mbytes/sec Transfer Rate

PDF	160 Pages

Scroll/Zoom	100%

Fabricante Electrónico	AMCC [Applied Micro Circuits Corporation]

Página de inicio	http://www.amcc.com

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143 / 160 page

S5920 – PCI Product

Revision 1.01 – November 28, 2005

AMCC Confidential and Proprietary

DS1596

143

Data Book

(disconnect, but with no data transfer), the read data is

held in the FIFO until the master comes back for it. In

this case, the Retry Flush Enb has no effect. The PCI

2.1 Specification states that the master must come

back if it receives a retry.

Write FIFO Mode indicates what to do in the event that

a full FIFO is detected during a PCI write transfer. If

low, the S5920 will perform an immediate disconnect,

thus freeing up the PCI bus for other transfers. The ini-

tiator will have to come back to complete the data

transfer, after which time the FIFO should no longer be

full. If Write FIFO Mode is high, the S5920 will deas-

sert TRDY#, and allow for either another FIFO location

to become available (as the Add-On has read a

DWORD), or wait for the Target Latency to expire (8

clocks from previous data phase), thus initiating a dis-

connect. This will allow for the Add-on device to

“catch-up” without losing the burst.

CS5920 Datasheet(PDF) 143 Page - Applied Micro Circuits Corporation