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)： 27/68頁
文件大?。?/td> 409K
代理商： OXCB950
7 I
NTERNAL
OX16C950 UART
Data Sheet Revision 1.1
Page 27
OXCB950
OXFORD SEMICONDUCTOR LTD.
The internal UART in the OXCB950 is an OX16C950 rev B specification high-performance serial port.
7.1
Operation – mode selection
The UART is backward compatible with the 16C450, 16C550, 16C654 and 16C750 UARTs. The operation of the port depends
on a number of mode settings, which are referred to throughout this section. The modes, conditions and corresponding FIFO
depth are tabulated below:
UART Mode
FIFO
size
(EFR[4]=1)
450
1
0
X
550
16
1
0
Extended 550
128
1
0
650
128
1
1
750
128
1
0
950
1
128
1
1
FCR[0]
Enhanced mode
FCR[5]
(guarded with LCR[7] = 1)
X
0
X
X
1
X
FIFOSEL
Pin
X
0
1
X
0
X
Table 7: UART Mode Configuration
Note 1: 950 mode configuration is identical to 650 configuration
Note 2: The FIFOSEL pin is not available on the OXCB950 device. It is internally tied low.
7.1.1
450 Mode
After a hardware reset, bit 0 of the FIFO Control Register
(‘FCR’) is cleared, hence the UART is compatible with the
16C450. The transmtter and receiver FIFOs (referred to as
the ‘Transmt Holding Register and ‘Receiver Holding
Register respectively) have a depth of one. This is referred
to as ‘Byte mode’. When FCR[0] is cleared, all other mode
selection parameters are ignored.
7.1.2
550 Mode
After a hardware reset, writing a 1 to FCR[0] wll increase
the FIFO size to 16, providing compatibility with 16C550
devices.
7.1.3
750 Mode
Writing a 1 to FCR[0] will increase the FIFO size to 16. In a
simlar fashion to 16C750, the FIFO size can be further
increased to 128 by writing a 1 to FCR[5]. Note that access
to FCR[5] is protected by LCR[7]. i.e., to set FCR[5],
software should first set LCR[7] to temporarily remove the
guard. Once FCR[5] is set, the software should clear
LCR[7] for normal operation.
The 16C750 additional features are available as long as
the UART is not put into Enhanced mode; i.e. ensure
EFR[4] = ‘0’. These features are:
Deeper FIFOs
Automatic RTS/CTS out-of-band flow control
Sleep mode
7.1.4
The OXCB950 is compatible with the 16C650 when EFR[4]
is set, i.e. the device is in Enhanced mode. As 650
software drivers usually put the device in Enhanced mode,
running 650 drivers on the one of the UART channels will
result in 650 compatibility with 128 deep FIFOs, as long as
FCR[0] is set. Note that the 650 emulation mode of the
OXCB950 provides 128-deep FIFOs rather than the 32
provided by a legacy 16C650.
In enhanced (650) mode the device has the following
features available over those provided by a generic 550.
(Note: some of these are simlar to those provided in 750
mode, but enabled using different registers).
Deeper FIFOs
Sleep mode
Automatic in-band flow control
Special character detection
Infra-red “IrDA-format” transmt and receive mode
Transmt trigger levels
Optional clock prescaler
650 Mode
相關(guān)PDF資料
PDF描述
OXFW900 IEEE1394 to ATA/ATAPI Native Bridge
OXFW900-TQ-A IEEE1394 to ATA/ATAPI Native Bridge
OXFW911 IEEE1394 to ATA/ATAPI Native Bridge
OXFW911-TQ-A IEEE1394 to ATA/ATAPI Native Bridge
OZ6812 ACPI CardBus Controller
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
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*