 English |
|
|
|
|
|
|
|
| LAN8810 Datasheet, PDF (72/83 Pages) Microchip Technology – GMII 10/100/1000 Ethernet Transceiver | |||
| |||
| ◁ |
LAN8810/LAN8810I
FIGURE 5-8:
MII TRANSMIT TIMING
TXCLK
TXD[3:0]
thold
TXEN
tclkp
tclkh tclkl
tsu thold
tsu thold
thold
tsu
TABLE 5-17: MII TRANSMIT TIMING VALUES
Symbol
tclkp
tclkh
tclkl
tsu
thold
Description
TXCLK period
TXCLK high time
TXCLK low time
TXD[3:0], TXEN setup time to rising edge of
TXCLK
TXD[3:0], TXEN hold time after rising edge of
TXCLK
Min
Note 5-5
tclkp*0.4
tclkp*0.4
12.0
0
Max
tclkp*0.6
tclkp*0.6
Units
ns
ns
ns
ns
Notes
Note 5-6
ns
Note 5-6
Note 5-5
Note 5-6
40ns for 100BASE-TX operation, 400ns for 10BASE-T operation.
Timing was designed for system load between 10 pf and 25 pf.
ï£ 2009-2015 Microchip Technology Inc.
DS00001870B-page 72
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese