參數(shù)資料
型號(hào)： HPC3130PBMQUADFLAT
廠商： Texas Instruments, Inc.
英文描述： PCI HOT PLUG CONTROLLER
中文描述： 的PCI熱插拔控制器
文件頁(yè)數(shù)： 24/40頁(yè)
文件大?。?/td> 555K
代理商： HPC3130PBMQUADFLAT
HPC3130
PCI HOT PLUG CONTROLLER
SCPS029B – DECEMBER1998
24
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
66-MHz PCI support
The HPC3130 supports up to two slots in a 66-MHz system: slot 0 and slot 1. These hot-plug slot interfaces
include the M66EN signal and the SYSM66EN signal communicates hot-plug slot capability to the system.
Figure 14 illustrates the 66-MHz support function in the HPC3130.
HPC–PCI M66EN FUNCTION
33 MHz
SYSM66EN
PCLK DRIVER
CB1G1257
PCI
SLOT
System PCI Bus
Motherboard
PCI Device
66 MHz
CLKON 0
PRST
CO
P
M66EN_0
M66EN_I
C
Figure 14. HPC3130 66-MHz System Support
Upon reset, the PCIRST signal is asserted and the bussed system M66EN signal is latched and selects the
system frequency.
Before an adapter card can be inserted, the slot is prepared for insertion by deasserting BUSON, deasserting
CLKON, and powering down the slot. When an adapter card is inserted into either hot-plug slot 0 or slot 1, the
value M66EN from the card can be read through internal registers. If the bus is operating at 66-MHz and a
33-MHz adapter card is inserted, then the software ensures that the card is never connected to the bus. If the
bus is operating at 33 MHz and a 66-MHz adapter card is inserted, then the latched SYSM66EN state can be
driven to the slot by enabling the CBT switch using CLKON.
SYSM66EN and CLKON input to a clock driver circuit to control the PCI clock frequency. The 66-MHz support
designed into the HPC3130 allows option cards to indicate PCI clock frequency capabilities upon PCI reset;
however, does not allow an inserted hot-plug card to alter the clock frequency of an operating PCI bus.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HPC3130PGE 制造商:未知廠家 制造商全稱:未知廠家 功能描述:PCI Bus Interface/Controller
HPC3130PGELOW-PROFILEQUAD 制造商:TI 制造商全稱:Texas Instruments 功能描述:PCI HOT PLUG CONTROLLER
HPC36003 制造商:NSC 制造商全稱:National Semiconductor 功能描述:High-Performance microControllers
HPC36003E30 制造商:未知廠家 制造商全稱:未知廠家 功能描述:16-Bit Microcontroller
HPC36003L30 制造商:未知廠家 制造商全稱:未知廠家 功能描述:16-Bit Microcontroller
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