參數(shù)資料
型號(hào)： QT0086202TME
英文描述： Controller Miscellaneous - Datasheet Reference
中文描述： 控制器雜項(xiàng)-數(shù)據(jù)表參考
文件頁(yè)數(shù)： 28/62頁(yè)
文件大?。?/td> 268K
代理商： QT0086202TME
82C814
Page 18
January 08, 1998
912-3000-047
Revision: 1.0
OPTi
Establish IRQ Driveback Address.
Write PCICFG 54-
57h with an I/O address to use for IRQ driveback. The
default value is 33333330h, but any unused value is fine.
Ideally the address should be greater than FFFFh to pre-
vent conflicts with ISA I/O address space.
Write the same value to the IRQ Driveback registers in the
host chipset (Viper-N+ or FireStar). The registers are at
the same PCI offset, but different PCI device: PCIDV1 54-
57h.
Select PCI Bus Number of Docking Station.
PCICFG
19h selects the PCI bus number on the secondary side of
the bridge. A value of 01h is typical.
Select Total Number of Downstream Buses.
PCICFG
1Ah selects the number of the last downstream PCI bus. A
value of 01h is typical.
Program the Time-out Value.
PCICFG 1Bh should be set
to FFh.
Program the Latency Timer
. PCICFG 0Dh should be set
to FFh.
Select the Status Change Events.
PCICFG 64h[3:0]
select the events that will cause a status change interrupt
in the future. Typically writing PCICFG 64h = 06h is ade-
quate. Also write PCICFG 60h = 0Fh to clear any pending
events.
Table 4-5 summarizes the typical settings for system initial-
ization.
4.7.4
At idle, with no device attached, the CD1-2# pins are pulled
high internal to the 82C814 chip. CVS1-2 are driven low. All
other interface lines are pulled low at this time; the docking
interface itself can remain unpowered. The 82C814 monitors
the CD1-2 lines to determine a docking event.
Action Upon Attachment of Dock
When a docking station is attached, the 82C814 sees CD1#
and CD2# go low, because the docking station connector has
these lines hard-wired as follows:
CD1# is connected to CVS1 for a 3.3V docking station, or
to CVS2 for a 5.0V docking station.
CD2# is connected to ground.
The 82C814 card detection sequencer waits for the time set
in PCICFG 50h[3], then performs a test on these lines to
determine the type of device attached. Once the test is com-
plete, the 82C814 generates an interrupt to the IRQ config-
ured in PCICFG 4Ch.
Table 4-5
Summary of Typical Settings (using IRQ5 for SMI)
* These bits should be read first, then written to the same value.
Register
Byte 3
Byte 2
Byte 1
Byte 0
82C814 Register
PCICFG 4Ch
--
--
--
15h (IRQ5)
PCICFG 54h
33h
33h
33h
30h
PCICFG 0Ch
--
--
FFh
--
PCICFG 18h
FFh
01h
01h
00h
PCICFG 64h
--
--
--
06h
PCICFG 60h
--
--
--
0Fh
Viper N+ Register (assuming IRQ5)
PCIDV1 54h
33h
33h
33h
30h
SYSCFG 64h
--
--
--
****1***b(IRQ5)
SYSCFG 57h
--
--
--
01**0000b
SYSCFG 59h
--
--
--
**11****b
SYSCFG 1Eh
--
--
--
****1***b
相關(guān)PDF資料
PDF描述
QT0086302TME Controller Miscellaneous - Datasheet Reference
QT110-D IC-QPROX SENSOR
QT110-S IC-SMD-QPROX SENSOR
QT110 SENSOR ICs
QT110H SENSOR ICs
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
QT0100 制造商:TE Connectivity 功能描述:Industrial Panel Mount Switches and Lights
QT0102 制造商:TE Connectivity 功能描述:
QT0105 制造商:TE Connectivity 功能描述:Industrial Panel Mount Switches and Lights
QT012 制造商:TE Connectivity 功能描述:
QT01201 功能描述:LIGHT PILOT RELIANT'22RECT BLCK RoHS:是 類別:光電元件 >> 面板指示器，指示燈 系列:Reliant'22 標(biāo)準(zhǔn)包裝:50 系列:- 透鏡顏色:綠 面板切口尺寸:6.4mm（圓形） 電壓:24V 形狀:圓形 類型:LED
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*