16 / 38 page
INTELLON CONFIDENTIAL
16
ADVANCE INFORMATION
Rev 8.1
INT5130 Integrated Powerline MAC/PHY Transceiver Technical Data Sheet
P
P
Case 6
TX only
P
Case 7
TX overrun
Frame
dropped
P
Case 8
Collision
MII_TXEN
MII_CRS
MII_COL
MII_RXDV
MII_RX[3:0]
MII_TX[3:1], MII_TX0
Figure 9: MII Flow Control Overview Part 2
MII Frame Structure
The frame structure transmitted on the MII or GPSI interface is the following sequence of fields:
Interframe Gap
Preamble
Start Frame Delimiter
Data
Interframe Gap
A period on the MII interface during which no data activity occurs on the MII.
Preamble
Begins a frame transmission that consists of 7 octets with the following bit values…
10101010 10101010 10101010 10101010 10101010 10101010 10101010
The preamble is stripped by the INT5130 when transmitting (the preamble is not transmitted on the
PLC medium) and pre-pended by the INT5130 when receiving.
Start Frame Delimiter
Indicates the start of a frame and follows the preamble. The SFD bit sequence is 10101011.
The start frame delimiter is stripped by the INT5130 when transmitting (the SFD is not transmitted
on the PLC medium) and pre-pended by the INT5130 when receiving.
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
