參數(shù)資料
型號(hào): AM79C901AVC
廠商: ADVANCED MICRO DEVICES INC
元件分類: 網(wǎng)絡(luò)接口
英文描述: HomePHY Single-Chip 1/10 Mbps Home Networking PHY
中文描述: DATACOM, ETHERNET TRANSCEIVER, PQFP80
封裝: PLASTIC, MO-136BAM, TQFP-80
文件頁數(shù): 63/90頁
文件大?。?/td> 714K
代理商: AM79C901AVC
Am79C901A
63
P R E L I M I N A R Y
TBR16: 10BASE-T Status and Enable Register (Register 16)
The status bits indicate when there is a change in the
Link Status, Duplex Mode, Auto-Negotiation status,
or Speed status. Register 16 contains the status and
enable bits. The status is always updated whether or
not the enable bits are set. When a status change oc-
curs, the system will need to read this register to
clear the status bits. See Table 50.
Table 50.
TBR16: 10BASE-T Status and Enable Register (Register 16)
Note:
All bits, except bit 13, are cleared on read (COR). The register must be read twice to see if it has been cleared.
Bits
Name
Description
Read/
Write
Default Value
(hex)
15:14
Reserved
R
0
13
Status Test Enable
(Note 1)
1 = When this bit is set, setting bits 12:9 of this register
will cause a condition that will set bits 4:1
accordingly. The effect is to test the register bits with
a forced interrupt condition.
0 = Bits 4:1 are only set if the interrupt condition (if any
bits in 12:9 are set) occurs.
R/W
0
12
Link Status Change
Enable
1 = Link Status change enable
0 = This interrupt is masked
R/W
0
11
Duplex Mode Change
Enable
1 = Duplex Mode change enable
0 = This interrupt is masked
R/W
0
10
Auto-Negotiation Change
Enable
1 = Auto-Negotiation change enable
0 = This interrupt is masked
R/W
0
9
Speed Change Enable
1 = Speed change enable
0 = This interrupt is masked
R/W
0
8
Global Enable
1= Global interrupt enable
0 = This interrupt is masked
R/W
0
7:5
Reserved
R
0
4
Link Status Change
1 = Link Status has changed on a port
0 = No change in Link Status
R, LH
0
3
Duplex Mode Change
1 = Duplex Mode has changed on a port
0 = No change in Duplex mode
R, LH
0
2
Auto-Negotiation Change
1 = Auto-Negotiation status has changed on a port
0 = No change in Auto-Negotiation status
R, LH
0
1
Speed Change
1 = Speed status has changed on a port
0 = No change
R, LH
0
0
Global
1 = Indicates a change in status of any of the above
interrupts
0 = Indicates no change in Interrupt status
R, LH
0
相關(guān)PDF資料
PDF描述
AM79C901AVCT HomePHY Single-Chip 1/10 Mbps Home Networking PHY
AM79C901AVI HomePHY Single-Chip 1/10 Mbps Home Networking PHY
AM79C901AVIT HomePHY Single-Chip 1/10 Mbps Home Networking PHY
AM79C90 CMOS Local Area Network Controller for Ethernet (C-LANCE)
AM79C90JC CMOS Local Area Network Controller for Ethernet (C-LANCE)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AM79C901AVC/w 制造商:Advanced Micro Devices 功能描述:79C901AVC/W
AM79C901AVC\\W 制造商:Advanced Micro Devices 功能描述:
AM79C901AVC\W 制造商:Advanced Micro Devices 功能描述:PHY 1-CH 1Mbps/10Mbps 80-Pin TQFP
AM79C901AVCT 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:HomePHY Single-Chip 1/10 Mbps Home Networking PHY
AM79C901AVI 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:HomePHY Single-Chip 1/10 Mbps Home Networking PHY