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參數(shù)資料
| 型號： | OXCB950 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Integrated High Performance UART Cardbus / PCI interface |
| 中文描述： | 綜合高性能的UART Cardbus / PCI接口 |
| 文件頁數(shù)： | 55/68頁 |
| 文件大?。?/td> | 409K |
| 代理商： | OXCB950 |
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8.1.6
Zone 5 allows the UART to be pre-configured, prior to any
cardbus/PCI accesses. This is very useful when the UART
needs to run with (typically generic) device drivers and
these drivers are not capable of utilising the enhanced
features/modes of the UART (eg 950 mode) that are
required for high performance. By using function access,
the UART registers can be accessed (setup) via the
eepromto customze the UART features before control is
handed to the device drivers.
Data Sheet Revision 1.1
Page 55
OXCB950
OXFORD SEMICONDUCTOR LTD.
Zone5: Function Access
Each 8bit (function) access is equivalent to accessing the
UART function through I/O BAR 0, with the exception that a
function read access does not return any data (it is
discarded). The UART function behaves as though these
function accesses via the eepromwere corresponding
cardbus/pci accesses.
Each entry for zone 5 comprises 2 16 bit words. The format
is as shown in Table 14.
1
st
WORD of FUNCTION ACCESS PAIR
Word
Bits
15
14:12
Description
‘1’ - another WORD to follow
BAR number to access
000 for BAR 0 (UART IO BAR)
Others values are reserved
‘0’ : Read access required(data will be discarded)
‘1’ : Write access required
Reserved – write 0’s
I/O address to access
This is the address that needs to be written/read and is
the offset address fromthe specified BAR. E.g to access
SPR register of UART, address is 00000111 (7dec).
11
10:8
7:0
2
nd
WORD of FUNCTION ACCESS PAIR
Word
Bits
15
Description
‘1’ – another function access WORD pair to follow.
‘0’ – no more function access word pairs. End EEPROM
program
Reserved – write 0’s
Data to be written to specified address.
Field is unused for function access READS
(set to 0’s for
reads)
14:8
7:0
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| OXCB950-TQAG | 功能描述:外圍驅(qū)動器與原件 - PCI 32 bit PC Card bridge to serial prt 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 |
| OXCB950-TQC60-A | 制造商:OXFORD 制造商全稱:OXFORD 功能描述:Integrated High Performance UART Cardbus / 3.3v PCI interface |
| OXCF950 | 制造商:OXFORD 制造商全稱:OXFORD 功能描述:low cost asynchronous 16-bit PC card or Compact Flash UART device |
| OXCF950_06 | 制造商:OXFORD 制造商全稱:OXFORD 功能描述:low cost asynchronous 16-bit PC card or Compact Flash UART device |
| OXCF950B | 制造商:PLX 制造商全稱:PLX 功能描述:16-bit PC card/CF+ bridge to serial port |
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