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參數(shù)資料
| 型號： | AM79C874VC |
| 廠商： | ADVANCED MICRO DEVICES INC |
| 元件分類： | 網(wǎng)絡(luò)接口 |
| 英文描述： | NetPHY-1LP Low Power 10/100-TX/FX Ethernet Transceiver |
| 中文描述： | DATACOM, ETHERNET TRANSCEIVER, PQFP80 |
| 封裝： | 12 X 12 MM, PLASTIC, MO-136BAM, TQFP-80 |
| 文件頁數(shù)： | 39/60頁 |
| 文件大小： | 869K |
| 代理商： | AM79C874VC |
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Am79C874
39
P R E L I M I N A R Y
Mode Control Register (Register 21)
Table 23.
Mode Control Register (Register 21)
Reg
Bit
Name
Description
Read/
Write
Default
21
15
Reserved
RO
0
21
14
Force_Link_10
1 = Force link up without checking NLP. Forced during local
loopback.
0 = Normal Operation.
RW
0
21
13
Force_Link_100
1 = Ignore link in 100BASE-TX and transmit data. Auto-
Negotiation must be disabled at this time (pin 56 tied low).
0 = Normal Operation.
RW
0
21
12
Jabber Disable
1 = Disable Jabber function in PHY.
0 = Enable Jabber function in PHY.
RW
0
21
11
7_Wire_Enable
1 = Enable 7-wire interface for 10BASE-T operation. This bit is
useful only when the chip is not in PCS bypass mode.
0 = Normal operation.
RW
0
21
10
CONF_ALED
1 = Activity LED only responds to receive operation.
0 = Activity LED responds to receive and transmit operations for
Half Duplex. LED responds to receive activity in Full Duplex
operation.
This bit should be ignored when Register 0.8 is set to 1 or during
repeater mode operation.
RW
0
21
9
LED_SEL
1 = Select NetPHY-1LP device
‘
s Standard LED configuration.
0 = Use the Advanced LED configuration.
RW
Set by
LEDRX/
LED_SEL
21
8
FEF_DISABLE
0 = Enable far-end-fault generation and detection function.
1 = Disable far-end-fault.
This bit should be ignored when FX mode is disabled.
RW
Set by
TECH[2:0],
FX_SEL,
ANEGA
pins
21
7
Force
FEF
Transmit
This bit is set to force to transmit Far End Fault (FEF) pattern.
RW
0
21
6
RX_ER_CNT Full
When Receive Error Counter is full, this bit will be set to 1.
RO/ RC
0
21
5
Disable
RX_ER_CNT
1 = Disable Receive Error Counter.
0 = Enable Receive Error Counter.
RW
0
21
4
DIS_WDT
1 = Disable the watchdog timer in the decipher.
0 = Enable watchdog timer.
RW
0
21
3
EN_RPBK
1 = Enable remote loopback (MDI loopback for 100BASE-TX).
0 = Disable remote loopback.
RW
0
21
2
EN_SCRM
1 = Enable data scrambling.
0 = Disable data scrambling.
When FX mode is selected, this bit will be forced to 0.
RW
Set by
SCRAM_EN
pin
21
1
PCSBP
1 = Bypass PCS.
0 = Enable PC.
RW
Set by
PCSBP pin
21
0
FX_SEL
1 = FX mode selected.
0 = Disable FX mode.
RW
Set by
FX_SEL pin
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AM79C874VD | 制造商:Advanced Micro Devices 功能描述:PHY 1-CH 10Mbps/100Mbps 80-Pin TQFP 制造商:AMD (Advanced Micro Devices) 功能描述:PHY 1-CH 10Mbps/100Mbps 80-Pin TQFP |
| AM79C874VF | 制造商:Advanced Micro Devices 功能描述:PHY 1-CH 10Mbps/100Mbps 80-Pin TQFP 制造商:AMD (Advanced Micro Devices) 功能描述:PHY 1-CH 10Mbps/100Mbps 80-Pin TQFP |
| AM79C874VI | 制造商:Advanced Micro Devices 功能描述:PHY 1-CH 10Mbps/100Mbps 80-Pin TQFP 制造商:AMD (Advanced Micro Devices) 功能描述:PHY 1-CH 10Mbps/100Mbps 80-Pin TQFP |
| AM79C874WW | 制造商:Advanced Micro Devices 功能描述:8" WAFER, DIE IN WAFER FORM, SINGLE PORT ETHERNET 10/100 - Trays |
| AM79C875 | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:NetPHY⑩ 4LP Low Power Quad 10/100-TX/FX Ethernet Transceiver |
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