參數(shù)資料
型號: LAN91C100FD
廠商: SMSC Corporation
英文描述: FEAST FAST ETHERNET CONTROLLER WITH FULL DUPLEX CAPABILITY
中文描述: 宴快速以太網(wǎng)控制器以全雙工能力
文件頁數(shù): 48/79頁
文件大?。?/td> 585K
代理商: LAN91C100FD
FEAST Fast Ethernet Controller with Full Duplex Capability
Rev.
10/14/2002
Page 48
SMSC DS – LAN91C100FD Rev. D
PRELIMINARY
Figure 5.6
-
TXEMPTY INTR (Assumes Auto release Option Selected)
TXEMPTY INTR
Write Acknowledge Reg. with
TXEMPTY Bit Set
Read TXEMPTY & TX INTR
Acknowledge TXINTR
Re-Enable TXENA
Return to ISR
Issue "Release" Command
Restore Packet Number
TXEMPTY = 0
&
TXINT = 0
(Waiting for Completion)
TXEMPTY = X
&
TXINT = 1
(Transmission Failed)
TXEMPTY = 1
&
TXINT = 0
(Everything went through
successfully)
Read Pkt. # Register & Save
Write Address Pointer
Register
Read Status Word from RAM
Update Statistics
Update Variables
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