參數(shù)資料
型號： PCI6420
廠商： Texas Instruments, Inc.
英文描述： Integrated 2-Slot PC Card & Dedicated Flash Media Controller
中文描述： 集成雙槽 PC 卡專用閃存介質(zhì)控制器
文件頁數(shù)： 103/160頁
文件大小： 818K
代理商： PCI6420
5
–
1
5 ExCA Compatibility Registers (Functions 0 and 1)
The ExCA (exchangeable card architecture) registers implemented in the PCI6x20 device are register-compatible
with the Intel 82365SL-DF PCMCIA controller. ExCA registers are identified by an offset value, which is compatible
with the legacy I/O index/data scheme used on the Intel
82365 ISA controller. The ExCA registers are accessed
through this scheme by writing the register offset value into the index register (I/O base), and reading or writing the
data register (I/O base + 1). The I/O base address used in the index/data scheme is programmed in the PC Card 16-bit
I/F legacy mode base address register, which is shared by both card sockets. The offsets from this base address run
contiguously from 00h to 3Fh for socket A, and from 40h to 7Fh for socket B. See Figure 5
–
1 for an ExCA I/O mapping
illustration. Table 5
–
1 identifies each ExCA register and its respective ExCA offset.
The PCI6x20 device also provides a memory-mapped alias of the ExCA registers by directly mapping them into PCI
memory space. They are located through the CardBus socket registers/ExCA registers base address register (PCI
register 10h) at memory offset 800h. Each socket has a separate base address programmable by function. See
Figure 5
–
2 for an ExCA memory mapping illustration. Note that memory offsets are 800h
–
844h for both functions
0 and 1. This illustration also identifies the CardBus socket register mapping, which is mapped into the same 4K
window at memory offset 0h.
The interrupt registers in the ExCA register set, as defined by the 82365SL specification, control such card functions
as reset, type, interrupt routing, and interrupt enables. Special attention must be paid to the interrupt routing registers
and the host interrupt signaling method selected for the PCI6x20 device to ensure that all possible PCI6x20 interrupts
can potentially be routed to the programmable interrupt controller. The ExCA registers that are critical to the interrupt
signaling are at memory address ExCA offsets 803h and 805h.
Access to I/O mapped 16-bit PC Cards is available to the host system via two ExCA I/O windows. These are regions
of host I/O address space into which the card I/O space is mapped. These windows are defined by start, end, and
offset addresses programmed in the ExCA registers described in this chapter. I/O windows have byte granularity.
Access to memory-mapped 16-bit PC Cards is available to the host system via five ExCA memory windows. These
are regions of host memory space into which the card memory space is mapped. These windows are defined by start,
end, and offset addresses programmed in the ExCA registers described in this chapter. Memory windows have
4-Kbyte granularity.
A bit location followed by a
means that this bit is not cleared by the assertion of PRST. This bit is only cleared by
the assertion of GRST. This is necessary to retain device context during the transition from D3 to D0.
相關(guān)PDF資料
PDF描述
PCI6421 DUAL/SINGLE SOCKET CARDBUS AND ULTRAMEDIA CONTROLLER
PCI6611 DUAL/SINGLE SOCKET CARDBUS AND ULTRAMEDIA CONTROLLER
PCI6621 DUAL/SINGLE SOCKET CARDBUS AND ULTRAMEDIA CONTROLLER
PCI6515 SINGLE SOCKET CARDBUS CONTROLLER WITH DEDICATED SMART CARD SOCKET
PCI6515GHK SINGLE SOCKET CARDBUS CONTROLLER WITH DEDICATED SMART CARD SOCKET
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PCI6420GHK 功能描述:外圍驅(qū)動器與原件 - PCI Integrated 2-Slot PC Card & Flash Cntrl 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
PCI6420ZHK 功能描述:外圍驅(qū)動器與原件 - PCI Integrated 2-Slot PC Card & Flash Cntrl 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
PCI6421 制造商:TI 制造商全稱:Texas Instruments 功能描述:DUAL/SINGLE SOCKET CARDBUS AND ULTRAMEDIA CONTROLLER
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PCI6421ZHK 制造商:Texas Instruments 功能描述:DUAL/SGL SCKT CARDBUS AND ULTRAMEDIA CNTRLR W/ DEDICATED FLA - Trays
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