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參數(shù)資料
| 型號： | PCI1520-EP |
| 英文描述： | Military Enhanced Plastic PC Card Controllers Data Manual |
| 中文描述： | 軍事增強(qiáng)塑料PC卡控制器數(shù)據(jù)手冊 |
| 文件頁數(shù)： | 43/125頁 |
| 文件大?。?/td> | 716K |
| 代理商： | PCI1520-EP |
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3
–
15
Table 3
–
8. PCI1520 Registers Used to Program Serial-Bus Devices
PCI OFFSET
REGISTER NAME
DESCRIPTION
B0h
Serial-bus data
Contains the data byte to send on write commands or the received data byte on read commands.
B1h
Serial-bus index
The content of this register is sent as the word address on byte writes or reads. This register is not used
in the quick command protocol.
B2h
Serial-bus slave
address
Write transactions to this register initiate a serial-bus transaction. The slave device address and the
R/W command selector are programmed through this register.
B3h
Serial-bus control
and status
Read data valid, general busy, and general error status are communicated through this register. In
addition, the protocol-select bit is programmed through this register.
3.7
Programmable Interrupt Subsystem
Interrupts provide a way for I/O devices to let the microprocessor know that they require servicing. The dynamic
nature of PC Cards and the abundance of PC Card I/O applications require substantial interrupt support from the
PCI1520. The PCI1520 provides several interrupt signaling schemes to accommodate the needs of a variety of
platforms. The different mechanisms for dealing with interrupts in this device are based on various specifications and
industry standards. The ExCA register set provides interrupt control for some 16-bit PC Card functions, and the
CardBus socket register set provides interrupt control for the CardBus PC Card functions. The PCI1520 is, therefore,
backward compatible with existing interrupt control register definitions, and new registers have been defined where
required.
The PCI1520 detects PC Card interrupts and events at the PC Card interface and notifies the host controller using
one of several interrupt signaling protocols. To simplify the discussion of interrupts in the PCI1520, PC Card interrupts
are classified either as card status change (CSC) or as functional interrupts.
The method by which any type of PCI1520 interrupt is communicated to the host interrupt controller varies from
system to system. The PCI1520 offers system designers the choice of using parallel PCI interrupt signaling, parallel
ISA-type IRQ interrupt signaling, or the IRQSER serialized ISA and/or PCI interrupt protocol. It is possible to use the
parallel PCI interrupts in combination with either parallel IRQs or serialized IRQs, as detailed in the sections that
follow. All interrupt signaling is provided through the seven multifunction terminals, MFUNC0
–
MFUNC6.
3.7.1
PC Card Functional and Card Status Change Interrupts
PC Card functional interrupts are defined as requests from a PC Card application for interrupt service and are
indicated by asserting specially-defined signals on the PC Card interface. Functional interrupts are generated by
16-bit I/O PC Cards and by CardBus PC Cards.
Card status change (CSC)-type interrupts are defined as events at the PC Card interface that are detected by the
PCI1520 and may warrant notification of host card and socket services software for service. CSC events include both
card insertion and removal from PC Card sockets, as well as transitions of certain PC Card signals.
Table 3
–
9 summarizes the sources of PC Card interrupts and the type of card associated with them. CSC and
functional interrupt sources are dependent on the type of card inserted in the PC Card socket. The three types of cards
that can be inserted into any PC Card socket are:
16-bit memory card
16-bit I/O card
CardBus cards
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PCI1620GHK | Controller Miscellaneous - Datasheet Reference |
| PCI1620PDV | Controller Miscellaneous - Datasheet Reference |
| PCI2050A | 32-Bit. 66MHz. 9-Master PCI-to-PCI Bridge |
| PCI2050GHK | BUS CONTROLLER |
| PCI2050PDV | BUS CONTROLLER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCI1520GHK | 功能描述:外圍驅(qū)動器與原件 - PCI PC CARD CONTROLLER RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
| PCI1520I | 制造商:TI 制造商全稱:Texas Instruments 功能描述:PC CARD CONTROLLERS |
| PCI1520IGHK | 功能描述:外圍驅(qū)動器與原件 - PCI PC CARD CONTROLLER RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
| PCI1520IGHKEP | 功能描述:外圍驅(qū)動器與原件 - PCI Mil Enhance PC Card Cntrlr Data Manual RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
| PCI1520IPDV | 功能描述:外圍驅(qū)動器與原件 - PCI PC CARD CONTROLLER RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
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