IP175C Datasheet, PDF (97/111 Pages) List of Unclassifed Manufacturers – 5 Port 10/100 Ethernet Integrated Switch

IP175C/IP175C LF/IP175CH/IP175CH LF
Data Sheet
MII1 MAC mode or MII2 MAC mode register (Only one is active at the same time.)
PHY
31
31
31
31
31
31
31
31
MII
4.15
4.14
4.13
4[12:8]
4.7
4.6
4.5
4[4:0]
ROM R/W
Description
Default
-- RO Flow control capability of the link partner of external PHY on MII1 1
MAC or MII2 MAC
1: link partner supports flow control,
0: link partner does not support flow control
-- RO Mac_force[1]
1: MII1orMII2’s speed and duplex are forced because
IP175C/IP175CH finds external PHY doesn’t support SMI
0: MII1orMII2 polls external PHY through SMI to decide its
speed and duplex.
-- RO MII1orMII2 _link
1: link ok, 0: un-link
100[4:0] R/W Capability of external PHY on MII1 MAC or MII2 MAC
bit12: flow control ability,
bit11: 100M full duplex,
bit10 : 100M half duplex,
bit9 : 10M full duplex,
bit8: 10M half duplex
11111
-- RO Speed of external PHY on MII1 MAC or MII2 MAC
0
1: 10M,
0: 100M
-- RO Duplex of external PHY on MII1 MAC or MII2 MAC
0
1: full duplex,
0: half duplex
-- RO Link status of external PHY on MII1 MAC or MII2 MAC
0
1: link on,
0: link off
99[4:0] R/W MII1orMII2_mac_phy_addr
00001
Copyright © 2004, IC Plus Corp.
97/111
Mar 09, 2007
IP175C/IP175CH-DS-R14