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參數(shù)資料
| 型號(hào)： | LAN8187_06 |
| 廠商： | SMSC Corporation |
| 英文描述： | 【15kV ESD Protected MII/RMII Fast-Ethernet PHY with HP Auto-MDIX and SMSC flexPWRTM |
| 中文描述： | 【15kV的ESD保護(hù)信息產(chǎn)業(yè)部/ RMII快速以太網(wǎng)PHY與HP Auto - MDIX功能和SMSC flexPWRTM |
| 文件頁數(shù)： | 49/72頁 |
| 文件大?。?/td> | 433K |
| 代理商： | LAN8187_06 |
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±15kV ESD Protected MII/RMII Fast-Ethernet PHY with HP Auto-MDIX and SMSC flexPWR
TM
Datasheet
SMSC LAN8187/LAN8187I
49
Revision 1.0 (12-14-06)
DATASHEET
5.3
Interrupt Management
The Management interface supports an interrupt capability that is not a part of the IEEE 802.3
specification. It generates an active low asynchronous interrupt signal on the nINT output whenever
certain events are detected as setup by the Interrupt Mask Register 30.
The Interrupt system on the SMSC LAN8187/8187I has two modes, a Primary Interrupt mode and an
Alternative Interrupt mode. Both systems will assert the nINT pin low when the corresponding mask
bit is set, the difference is how they de-assert the output interrupt signal nINT.
The Primary interrupt mode is the default interrupt mode after a power-up or hard reset, the Alternative
interrupt mode would need to be setup again after a power-up or hard reset.
5.3.1
Primary Interrupt System
The Primary Interrupt system is the default interrupt mode, (Bit 17.6 = ‘0’). The Primary Interrupt
System is always selected after power-up or hard reset.
To set an interrupt, set the corresponding mask bit in the interrupt Mask register 30 (see
Table 5.45
).
Then when the event to assert nINT is true, the nINT output will be asserted.
When the corresponding Event to De-Assert nINT is true, then the nINT will be de-asserted.
Note:
The ENERGYON bit 17.1 is defaulted to a ‘1’ at the start of the signal acquisition process,
therefore the Interrupt source flag 29.7 will also read as a ‘1’ at power-up. If no signal is
present, then both 17.1 and 29.7 wil clear within a few milliseconds.
5.3.2
Alternate Interrupt System
The Alternative method is enabled by writing a ‘1’ to 17.6 (ALTINT).
Table 5.45 Interrupt Management Table.
Mask
Interrupt Source Flag
Interrupt Source
Event to Assert nINT
Event to De-Assert nINT
30.7
29.7
ENERGYON
17.1
ENERGYON
Rising 17.1
a
a.
If the mask bit is enabled and nINT has been de-asserted while ENERGYON is still high, nINT will assert for
256 ms, approximately one second after ENERGYON goes low when the Cable is unplugged. To prevent an
unexpected assertion of nINT, the ENERGYON interrupt mask should always be cleared as part of the
ENERGYON interrupt service routine.
Falling 17.1 or
Reading register 29
30.6
29.6
Auto-Negotiation
complete
1.5
Auto-Negotiate
Complete
Rising 1.5
Falling 1.5 or
Reading register 29
30.5
29.5
Remote Fault Detected
1.4
Remote Fault
Rising 1.4
Falling 1.4, or
Reading register 1 or
Reading register 29
30.4
29.4
Link Down
1.2
Link Status
Falling 1.2
Reading register 1 or
Reading register 29
30.3
29.3
Auto-Negotiation LP
Achnowledge
5.14
Acknowledge
Rising 5.14
Falling 5.14 or
Read register 29
30.2
29.2
Parallel Detection Fault
6.4
Parallel Detection
Fault
Rising 6.4
Falling 6.4 or
Reading register 6, or
Reading register 29 or
Re-AutoNegotaite or
Link down
30.1
29.1
Auto-Negotiation Page
Received
6.1
Page Received
Rising 6.1
Falling of 6.1 or
Reading register 6, or
Reading register 29
Re-AutoNegotatie, or
Link Down.
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| LAN8187I | 制造商:SMSC 制造商全稱:SMSC 功能描述:High-Performance MII and RMII 10/100 Ethernet PHY with HP Auto-MDIX |
| LAN8187I-JT | 功能描述:以太網(wǎng) IC HiPerfrm Ethrnt PHY RoHS:否 制造商:Micrel 產(chǎn)品:Ethernet Switches 收發(fā)器數(shù)量:2 數(shù)據(jù)速率:10 Mb/s, 100 Mb/s 電源電壓-最大:1.25 V, 3.45 V 電源電壓-最小:1.15 V, 3.15 V 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-64 封裝:Tray |
| LAN8187-JT | 功能描述:以太網(wǎng) IC HiPerfrm Ethrnt PHY RoHS:否 制造商:Micrel 產(chǎn)品:Ethernet Switches 收發(fā)器數(shù)量:2 數(shù)據(jù)速率:10 Mb/s, 100 Mb/s 電源電壓-最大:1.25 V, 3.45 V 電源電壓-最小:1.15 V, 3.15 V 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-64 封裝:Tray |
| LAN83C171 | 制造商:SMSC 制造商全稱:SMSC 功能描述:EPIC/XF ACPI/PC 97 Compliant Integrated PCI 10/100 Mbps Fast Ethernet Controller |
| LAN83C171 WAF | 制造商:SMSC 功能描述: |
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