參數(shù)資料
型號: IP175CH
廠商: Electronic Theatre Controls, Inc.
英文描述: 5 Port 10/100 Ethernet Integrated Switch
中文描述: 5端口10/100以太網(wǎng)集成開關(guān)
文件頁數(shù): 59/111頁
文件大?。?/td> 679K
代理商: IP175CH
IP175C/IP175C LF/IP175CH/IP175CH LF
Data Sheet
Register descriptions
R/W = Read/Write, SC = Self-Clearing, RO = Read Only, LL = Latching Low, LH = Latching High
MII register 0 of PHY0~4 (Each PHY has its own MII register 0 with different PHY address)
Copyright
2004, IC Plus Corp.
59/111
Mar 09, 2007
IP175C/IP175CH-DS-R14
PHY
Control register
4~0
0.15
MII
ROM
R/W
Description
Default
--
RW/
SC
Reset
The PHY is reset if user write “1” to this bit. The reset period is
around 2ms. User has to wait for at least 2ms to access
IP175C/IP175CH.
R/W Loop back
1 = Loop back mode
0 = normal operation
When this bit set, IP175C/IP175CH will be isolated from the
network media, that is, the assertion of TXEN at the MII will not
transmit data on the network. All MII transmission data will be
returned to MII receive data path in response to the assertion
of TXEN.
Bit 0.12 is cleared automatically, if this bit is set. User has to
program bit 0.12 again after loop back test.
RW
1 = 100Mbps
0 = 10Mbps
It is valid only if bit 0.12 is set to be 0.
RW
1 = Auto-Negotiation Enable
0 = Auto-Negotiation Disable
R/W
1: power down mode
0: normal operation
Isolate
IP175C/IP175CH doesn’t support this function.
RW
SC
0 = Auto-Negotiation re-start complete
Setting this bit to logic high will cause IP175C/IP175CH to
restart an Auto-Negotiation cycle, but depending on the value
of bit 0.12 (Auto-Negotiation Enable). If bit 0.12 is cleared then
this bit has no effect, and it is Read Only. This bit is
self-clearing after Auto-Negotiation process is completed.
R/W
1 = full duplex
0 = half duplex
It is valid only if bit 0.12 is set to be 0.
R/W Collision test
RO Reserved
0
4~0
0.14
--
0
4~0
0.13
--
Speed Selection
1
4~0
0.12
--
Auto-Negotiation Enable
1
4~0
0.11
--
Power Down
0
4~0
0.10
--
0
4~0
0.9
--
Restart Auto- Negotiation
1 = re-starting Auto-Negotiation
0
4~0
0.8
--
Duplex mode
0
4~0
4~0
0.7
0[6:0]
--
--
0
0
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