Rainbow Electronics W90P710CDG - Manual (Page 125)

W90P710CD/W90P710CDG
Publication Release Date: September 19, 2006
- 125 - Revision B2
Continued.
BITS DESCRIPTIONS
[2] ARP
The Accept Runt Packet controls the runt packet, which length is less
than 64 bytes, reception. If the ARP is set to high, the EMC will
accept the runt packet.
Otherwise, the runt packet will be dropped.
1’b0: The runt packet will be dropped by EMC.
1’b1: The runt packet will be accepted by EMC.
[1] ALP
The Accept Long Packet controls the long packet, which packet
length is greater than 1518 bytes, reception. If the ALP is set to high,
the EMC will accept the long packet.
Otherwise, the long packet will be dropped.
1’b0: The long packet will be dropped by EMC.
1’b1: The long packet will be accepted by EMC.
[0] RXON
The Frame Reception ON controls the normal packet reception of
EMC. If the RXON is set to high, the EMC starts the packet reception
process, including the Rx descriptor fetching, packet reception and
Rx descriptor modification.
It is must to finish EMC initial sequence before enable RXON.
Otherwise, the EMC operation is undefined.
If the RXON is disabled during EMC is receiving an incoming packet,
the EMC stops the packet reception process after the current packet
reception finished.
1’b0: The EMC stops packet reception process.
1’b1: The EMC starts packet reception process.
MII Management Data Register (MIID)
The EMC provides MII management function to access the control and status registers of the external
PHY. The MIID register is used to store the data that will be written into the registers of external PHY
for write command or the data that is read from the registers of external PHY for read command.
REGISTER ADDRESS R/W DESCRIPTION RESET VALUE
MIID 0xFFF0_3094 R/W MII Management Data Register 0x0000_0000