參數(shù)資料
型號: DM9801E
廠商: Electronic Theatre Controls, Inc.
英文描述: 1M home Phonrline Network Physical Layer Single Chip Transceiver
中文描述: 100萬家庭Phonrline網(wǎng)絡(luò)物理層單芯片收發(fā)器
文件頁數(shù): 15/61頁
文件大小: 589K
代理商: DM9801E
DM9801
1M Home Phoneline Network Physical Layer Single Chip Transceiver
Preliminary
Version: DM9801-DS-P02
March 20, 2000
15
MII Interface Transmit and Receive Timing Diagram
(continued)
TX_CLK
RX_CLK
TX_EN
TXD
CRS
RXD
COL
RX_DV
0
0
0
0
COL may be asserted up to 120 us after CRS has been asserted. Once COL has been asserted, TX_CLK and RX_CLK run
at a period of 933.3 ns until COL and CRS are cleared. It can take up to about 600 us for CRS to clear.
RXPKT – COL Asserted
Figure 9
Management Interface - Read Frame Structure
32 "1"s
0
1
1
0
A4
A3
A0
R4
R3
R0
Z
0
Idle
Preamble
SFD
Op Code
PHY Address
Register Address
Turn Around
Data
Read
Idle
Write
MDC
MDIO Read
D15
D14
D1
D0
//
//
Management Interface - Write Frame Structure
32 "1"s
0
1
1
0
A4
A3
A0
R4
R3
R0
1
0
D15
D14
D1
D0
Idle
Preamble
SFD
Op Code
PHY Address
Register Address
Write
Turn Around
Data
Idle
MDC
MDIO Write
Figure 10
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