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參數資料
| 型號： | DJLXT972MTAA4 |
| 廠商： | Intel Corp. |
| 英文描述： | Single-Port 10/100 Mbps PHY Transceiver |
| 中文描述： | 單端口10/100 Mbps的物理層收發器 |
| 文件頁數： | 76/92頁 |
| 文件大小： | 666K |
| 代理商： | DJLXT972MTAA4 |
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Intel
LXT972M Single-Port 10/100 Mbps PHY Transceiver
76
Datasheet
Document Number: 302875-005
Revision Date: 27-Oct-2005
Table 41
lists control register bits.
Table 41. Control Register - Address 0, Hex 0
Bit
Name
Description
Type
1
Default
0.15
Reset
0 = Normal operation
1 = PHY reset
R/W
SC
0
0.14
Loopback
0 = Disable loopback mode
1 = Enable loopback mode
R/W
0
0.13
Speed Selection
0.6
0.13
Speed Selected
R/W
Note 2
0
0
1
1
0
1
0
1
10 Mbps
100 Mbps
1000 Mbps (not supported)
Reserved
0.12
Auto-Negotiation
Enable
0 = Disable auto-negotiation process
1 = Enable auto-negotiation process
R/W
Note 2
0.11
Power-Down
0 = Normal operation
1 = Power-down
R/W
0
0.10
Isolate
0 = Normal operation
1 = Electrically isolate PHY from MII
R/W
0
0.9
Restart Auto-
Negotiation
0 = Normal operation
1 = Restart auto-negotiation process
R/W
SC
0
0.8
Duplex Mode
0 = Half-duplex
1 = Full-duplex
R/W
Note 2
0.7
Collision Test
0 = Disable COL signal test
1 = Enable COL signal test
R/W
0
0.6
Speed Selection
X - 0.6
0.13
Speed Selected
R/W
0
0
0
1
1
0
1
0
1
10 Mbps
100 Mbps
1000 Mbps (not supported)
Reserved
0.5:0
Reserved
Write as ‘0’. Ignore on Read.
R/W
00000
1. R/W = Read/Write
SC = Self Clearing
2. Some bits have their default values determined at reset by hardware configuration pins. For default details
for these bits, see
Section 5.4.4, “Hardware Configuration Settings”
.
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