參數(shù)資料
型號(hào)： OX16PCI952
廠商： Electronic Theatre Controls, Inc.
英文描述： Integrated High Performance Dual UARTs, Parallel Port and 5.0v PCI interface
中文描述： 集成高性能的雙UART，并行端口和5.0V PCI接口
文件頁數(shù)： 13/76頁
文件大?。?/td> 1386K
代理商： OX16PCI952
5 C
ONFIGURATION
& O
PERATION
DataSheet Revision 1.1
Page 13
OX16PCI952
OXFORD SEMICONDUCTOR LTD.
The OX16PCI952 is a multi-function, target-only PCI
device, compliant with the PCI Local Bus Specification,
Revision 2.2 and PCI Power Management Specification,
Revision 1.0.
The OX16PCI952 affords maximumconfguration flexibility
by treating the internal UARTs and the parallel port as
separate logical functions (function 0 and function 1,
respectively). Each function has its own PCI configuration
space and is therefore recognised and configured by the
PCI BIOS separately (each function operates as though it
were a separate device). The device can also be
configured to operate as a single function device by making
available only the internal UARTs. This is controlled by the
Mode pin, as shown in Table 3.
The OX16PCI952 is configured by systemstart-up
software during the bootstrap process that follows bus
reset. The systemscans the PCI bus and reads the vendor
and device identification codes fromany devices/functions
it finds and the resources being requested. It then loads the
device-driver software according to this information and
configures the I/O, memory and interrupt resources. Device
drivers can then access the functions at the assigned
Mode
Configuration
0
Dual Function Device Mode.
Function 0 is the Dual UART. Function 1 is the parallel port
1
Single Function Device Mode.
Function 0 is the Dual UART. Function 1 (Parallel Port) is not available.
addresses in the usual fashion, with the improved data
throughput provided by PCI.
A set of
local configuration registers
have been provided
that can be used to control the device’s characteristics
(such as interrupt handling) and report internal functional
status. This is on top of the UART and the Parallel Port
registers, and the registers contained in each of the 2
functions PCI configuration Space. These local registers
are common to both functions and can be set up by the
device drivers of function 0 and function 1, or fromthe
optional EEPROM.
The EEPROMcan also be used to redefine the reset
values of most register areas to tailor the device to the end
users requirements if the default values do not meet the
specific requirements of the manufacturer, such as the
identification registers. As an additional enhancement, the
EEPROM can be used to pre-programeach UART and the
Parallel Port, allowing pre-configuration, without requiring
device driver changes. This, for example, does allow the
enhanced features of the integrated UARTs to be in place
prior to handover to any generic device drivers. A simlar
arrangement is available for the parallel port.
Table 3: Mode configuration
相關(guān)PDF資料
PDF描述
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
OX16PCI952_05 制造商:OXFORD 制造商全稱:OXFORD 功能描述:Integrated High Performance Dual UARTs, Parallel Port and 5.0v PCI interface
OX16PCI952-TQAG 制造商:PLX Technology 功能描述: 制造商:Oxford Semiconductor 功能描述:IC PCI BRIDGE DUAL PORT UART SMD
OX16PCI952-TQC60-A 制造商:OXFORD 制造商全稱:OXFORD 功能描述:Integrated High Performance Dual UARTs, Parallel Port and 5.0v PCI interface
OX16PCI952-TQFP-A 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Integrated High Performance Dual UARTs, Parallel Port and 5.0v PCI interface
OX16PCI954 制造商:OXFORD 制造商全稱:OXFORD 功能描述:Integrated Quad UART and PCI interface
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