參數(shù)資料
型號(hào): DM9000A
廠商: Electronic Theatre Controls, Inc.
英文描述: Ethernet Controller with General Processor Interface
中文描述: 以太網(wǎng)控制器與通用處理器接口
文件頁(yè)數(shù): 35/56頁(yè)
文件大?。?/td> 1744K
代理商: DM9000A
DM9000A
Ethernet Controller with General Processor Interface
Preliminary datasheet
Version: DM9000A-DS-P03
Apr. 21, 2005
35
generator circuit. When waking up from Sleep mode (write
this bit to 0), the configuration will go back to the state
before sleep; but the state machine will be reset
Remote Loopout Control
When this bit is set to 1, the received data will loop out to the
transmit channel. This is useful for bit error rate testing
16.0
RLOUT
0, RW
8.9 DAVICOM Specified Configuration and Status Register (DSCSR) - 17
Bit
Bit Name
Default
17.15
100FDX
1, RO
Description
100M Full Duplex Operation Mode
After auto-negotiation is completed, results will be written to this
bit. If this bit is 1, it means the operation 1 mode is a 100M full
duplex mode. The software can read bit [15:12] to see which mode
is selected after auto-negotiation. This bit is invalid when it is not
in the auto-negotiation mode
100M Half Duplex Operation Mode
After auto-negotiation is completed, results will be written to this
bit. If this bit is 1, it means the operation 1 mode is a 100M half
duplex mode. The software can read bit [15:12] to see which mode
is selected after auto-negotiation. This bit is invalid when it is not
in the auto-negotiation mode
10M Full Duplex Operation Mode
After auto-negotiation is completed, results will be written to this
bit. If this bit is 1, it means the operation 1 mode is a 10M Full
Duplex mode. The software can read bit [15:12] to see which
mode is selected after auto-negotiation. This bit is invalid when it
is not in the auto-negotiation mode
10M Half Duplex Operation Mode
After auto-negotiation is completed, results will be written to this
bit. If this bit is 1, it means the operation 1 mode is a 10M half
duplex mode. The software can read bit [15:12] to see which mode
is selected after auto-negotiation. This bit is invalid when it is not
in the auto-negotiation mode
Reserved
Read as 0, ignore on write
PHY Address Bit 4:0
The first PHY address bit transmitted or received is the MSB of
the address (bit 4). A station management entity connected to
multiple PHY entities must know the appropriate address of each
PHY
Auto-negotiation Monitor Bits
These bits are for debug only. The auto-negotiation status will be
17.14
100HDX
1, RO
17.13
10FDX
1, RO
17.12
10HDX
1, RO
17.11-17
.9
17.8-17.
4
Reserved
0, RO
PHYADR
[4:0]
(PHYADR),
RW
17.3-17.
0
ANMB[3:
0]
0, RO
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