參數(shù)資料
型號(hào): 84C300A
廠商: LSI Corporation
英文描述: 4-Port Fast Ethernet Controller(四端口快速以太網(wǎng)控制器)
中文描述: 4端口快速以太網(wǎng)控制器(四端口快速以太網(wǎng)控制器)
文件頁數(shù): 41/56頁
文件大?。?/td> 523K
代理商: 84C300A
84C300A 4-Port
Fast Ethernet Controller
4-41
MD400152/E
7.01 Transmit Data Interface Write Timing 1
Notes:
1.SPDTAVL gets deasserted because of the 7th double word write to the transmit FIFO indicating that the 8th
double word write will fill the FIFO completely. It is important to note that the data gets pipelined internally, hence
the 7th external double word write (The 7th Clock Edge that latches in the active low TXWREN) actually happens
on the 8th clock cycle internally.
t 1
RXRD_TXWR
TXINTEN
TXRDY
TXWREN
RXTXPS[1:0]
RXTXDATA[31:0]
RXTXBE[3:0]
SPDTAVL
TXNOCRC
t 3
t 9
t 5
t 4
t 6
t 7
t 7
t 2
t 12
t 13
t 8
t 15
t 7
t 8
1
7
6
5
4
3
2
8
1
2
3
4
5
6
7
t 8
9
[1]
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