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參數(shù)資料
| 型號： | OX16CF950 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | LOW COST ASYNCHRONOUS 16 BIT CARD |
| 中文描述： | 低成本異步16位卡 |
| 文件頁數(shù)： | 48/60頁 |
| 文件大?。?/td> | 753K |
| 代理商： | OX16CF950 |
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Page 48
OXCF950 DATA SHEET V1.1
OXFORD SEMICONDUCTOR LTD.
Bits
15
Description
‘0’ = There are no more configuariton WORDs to follow in
Zone 2. Move to next available zone or end EEPROM
program if no more zones are enabled in the header.
1’1 = There is another configuration WORD to follow for the
Local Configuration Registers
Local Register address (in IO space). Valid address range is
8 to 15
8-bit value of the register to be programmed
14:8
7:0
Table 41: Word format for Zone 2
7.5
Zone 3 : Function Access (UART)
Zone 3 allows the UART to be pre-configured, prior to any CF/PCMCIA 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 (e.g. 950 mode) that are required for high performance. By using function access, the UART registers can be accessed
(setup) via the EEPROM to customize the UART features before control is handed to the device drivers.
Each 8-bit access is equivalent to accessing the UART function through IO space (addresses 0 to 7), 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 EEPROM were corresponding CF/PCMCIA access.
Each entry for zone 3 comprises of 2 16-bit words. The format is as shown.
1
st
WORD (of WORD pair)
Bits
15
14:12
11
0 = Function read access
1 = Function write access
10:8
7:0
IO address to access (valid values 0 to 7)
Description
Value = 1
Reserved (write 0’s)
Reserved (write 0’s)
Table 42: Zone 3 (first WORD) format
2
nd
WORD (of WORD pair)
Bits
15
Description
‘1’ = another function access WORD pair to follow
‘0’ = no more function access WORD pairs
Reserved (write 0’s)
Data to be written to specified addresses.
Field is unused for function access READS (set to 0)
14:8
7:0
Table 43: Zone 3 (second WORD) format
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| OX16PCI952 | 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 |
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| 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 |
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