AX88140AP ETC, AX88140AP Datasheet - Page 25

• Manufacturer Part Number: AX88140AP
• Description: Fast Ethernet MAC Controller
• Manufacturer: ETC

Port and Data Rate Selection
REG6
<18>
5:4
8
7
6
3
2
1
0
0
1
1
1
1
AX88140A
REG6
R/W
R/W
R/W
R/W
R/W
<22>
R
-
-
0
1
0
0
0
RB - Receive broadcast packet
PM - Pass All Multicast
PR - Promiscuous Mode
Reserved.--Written as “0” for future compatibility concern.
PB - Pass Bad Frames
Reserved.--Written as “0” for future compatibility concern.
SR - Start/Stop Receive
PLS - PCS_SYM Link Status : Active high.
REG6
Tab - 21 REG6 Operation Mode Register Description
<23>
X
0
0
1
1
Tab - 22 Port and Data Rate Selection
REG6
<24>
X
0
0
0
1
ACTIVE
MII/SYM
MII/SYM
MII/SYM
MII/SYM
PORT
SRL
25
100MB/S MII with transmit FIFO thresholds appropriate
100MB/S PCS function for 100BASE-FX
DATA
100Mb/s PCS and scrambler functions for 100BASE-T
RATE
10MB/S
10MB/S
0
1
0
1
0
1
0
1
0
1
0
Half-Duplex
Accept broadcast packet
Reject broadcast packet
Enable Pass All Multicast
Disable Pass All Multicast
Indicates that any incoming valid frame is received,
regardless of its destination address.
Disable Promiscuous Mode.
All incoming frames that passed the address
filtering are received, including runt frames,
collided fragments, or truncated frames caused by
FIFO over-flow. If any received bad frames are
required, promiscuous mode (REG6<6>) should be
set to 1.
Disable pass bad frame.
Start Receive
Stop Receive
Conventional 10MB/S ENDEC interface
MII with transmit FIFO thresholds appropriate
for 10MB/S
for 100MB/S
ASIX ELECTRONICS CORPORATION
FUNCTION
PRELIMINARY