DM9620 DAVICOM [Davicom Semiconductor, Inc.], DM9620 Datasheet - Page 17

• Manufacturer Part Number: DM9620
• Description: USB2.0 to 10/100M Fast Ethernet Controller
• Manufacturer: DAVICOM [Davicom Semiconductor, Inc.]

4.2 Network Status Register (01H)
Preliminary
Version: DM9620 -15-DS-P02
February 20, 2012
Bit
0
7
6
5
4
3
2
1
0
RESERVED
RESERVED
RESERVED
WAKEST
LINKST
RXRDY
SPEED
RXOV
Name
RST
PHS0,RW
PHS0,RO
PHS0,RO
PHS0,RO
PHS0,RO
P0,W/C1
PH0,RW
Default
RW/C1
RW/C1
PHS0,
PHS0,
Software Reset
Media Speed Status
1:10Mbps
This bit is no meaning when LINKST=0.
This bit read only in internal PHY mode and it can be written in external PHY
mode.
This bit can also be forced by register 2EH bit 5 and 2.
Link status
1:link OK
This bit read only in internal PHY mode and it can be written in external PHY
mode.
This bit can also be forced by register 2EH bit 5 and 0.
Wakeup event status.
Reserved
Reserved
Reserved
RX FIFO Overflow Status
This bit is set when RX FIFO free space is less than 544-byte
This bit be cleared when RX FIFO free space is more than 2K.
RX Packet Ready
This bit is set when there are one or more packets in RX FIFO.
0:100Mbps
0:link failed
When write “1” to this bit, DM9620 enters software reset mode and will be
automatically cleared after 10us.
This bit is set when wakeup event status asserted.
This bit is cleared by write “1” or when wakeup mode disabled.
Write “0” to this bit can end the software reset mode.
Description
USB2.0 to Fast Ethernet Controller
DM9620
17