參數(shù)資料
型號: MD8412B
廠商: Electronic Theatre Controls, Inc.
英文描述: LINK(IEEE 1394)
中文描述: 鏈接(1394)
文件頁數(shù): 70/114頁
文件大?。?/td> 577K
代理商: MD8412B
MD8412B
58
FUJIFUILM MICRODEVICES CO., LTD.
Ver 1.10
5-2
PHY-chip interface
Interface with the PHY-chip is established with the SYSCLK, LREQ,D(7:0), CTL(1:0) signals. For connection with the
PHY-chips that have various maximum speeds, the D(7:0) signal is used to select 100Mbps, 200Mbps, and 400Mbps. Con-
nection with a 100Mbps PHY chip is made by D(1:0), that with a 200Mbps PHY-chip is made by D(3:0), and that with a
400Mbps PHY-chip is made by D(7:0) to enable communication.
5-2-1
Connecting method
Regarding the method of connection with PHY-chips, the MD8412B is designed to support DC connections only. There-
fore, the method of connection is as shown in Figure 5-2-1.
Connection with the MD8412B, a 200Mbps PHY-chip, is possible by making a connection between the lower 4 bits of
the D(7:0) terminal and the MD8401. (See Figure 5-2-2)
Figure 5-2-1 Connection between MD8412B and PHY-Chip
SYSCLK
LREQ
D(7:0)
CTL(1:0)
Link_On
PPS
VDD
LINK
Chip
MD8412B
PHY
Chip
DIRECT
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