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参数资料
| 型号： | IP178CH |
| 厂商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 8 Port 10/100 Ethernet Integrated Switch |
| 中文描述： | 8端口10/100以太网集成开关 |
| 文件页数： | 47/91页 |
| 文件大小： | 1244K |
| 代理商： | IP178CH |
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IP178C
Preliminary Data Sheet
2.15
Copyright
2004, IC Plus Corp.
47/91
October 27, 2005
IP178C-DS-R09
Register descriptions
R/W = Read/Write, SC = Self-Clearing, RO = Read Only, LL = Latching Low, LH = Latching High
Basic MII registers of port 0
PHY
MII
ROM
R/W
MII control register (address 00)
0
0.15
--
Reset
0
0.14
--
R/W Loop back
1 = Loop back mode
0 = normal operation
When this bit set, IP178C 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.
0
0.13
--
RW
1 = 100 Mbpsbps
0 = 10 Mbpsbps
It is valid only if bit 0.12 is set to be 0.
0
0.12
--
RW
1 = Auto-Negotiation Enable
0 = Auto-Negotiation Disable
0
0.11
--
R/W Power Down
0
0.10
--
Isolate
0
0.9
--
RW
SC
0 = Auto-Negotiation re-start complete
Setting this bit to logic high will cause IP178C 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.
0
0.8
--
R/W
1 = full duplex
0 = half duplex
It is valid only if bit 0.12 is set to be 0.
0
0.7
--
R/W Collision test
0
0[6:0]
--
R/W Write as 0, ignore on read
Description
Default
0
0
Speed Selection
1
Auto-Negotiation Enable
1
0
0
0
Restart Auto- Negotiation
1 = re-starting Auto-Negotiation
Duplex mode
0
0
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