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): 71/114頁
文件大?。?/td> 577K
代理商: MD8412B
MD8412B
Ver 1.10
FUJIFUILM MICRODEVICES CO., LTD.
59
Figure 5-2-2 Connection between MD8412B and MD8404
5-2-2
PHY-chip control
To control the PHY-chip, the MD8412B employs communication means defined by the following 4 types of operation
modes. Each operation mode is defined according to the condition of CTL(1:0) terminal.
After control of the PHY-LINK bus has been enabled in the above Transmit mode, the operation mode shown in Table 5-
2-2 is valid.
CTL[0:1]
Operation
Contents
00b
Idle
Idle condition and nothing is operating (Default mode)
01b
Status
Status information transferred from PHY-chip
10b
Receive
Contents of received packet transferred from PHY-chip
11b
Transmit
PHY-LINK bus controlled for MD8412B to transfer a transmission packet to
PHY-chip
Table 5-2-1 PHY-Chip Control Mode 1
CTL[0:1]
Operation
Contents
00b
Idle
PHY-LINK bus released upon completion of transfer by MD8412B
01b
Hold
- Bus held for MD8412B transfer until definition of data
- MD8412B requesting for another packet sending without arbitration
10b
Transmit
Data of a transmission packet transferred to PHY-chip
11b
Reserved
Reserved
Table 5-2-2 PHY-Chip Control Mode 2
SYSCLK
LREQ
D(7:0)
CTL(1:0)
LPS
LINK
Chip
MD8412B
PHY
Chip
SYSCLK
LREQ
D(3:0)
CTL(1:0)
LPS
MD8404
AC Coupling
Circuite
DIRECT
DIRECT
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