參數(shù)資料
型號(hào)： 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(yè)數(shù)： 44/68頁(yè)
文件大?。?/td> 409K
代理商： OXCB950
values in bits-per-second (bps) that are obtained if the
divisor latch = 0x01 and the Prescaler is set to 1.
The OXCB950 has the facility to operate at baud-rates up
to 15 Mbps in normal mode.
Table 26 indicates how the value in the register
corresponds to the number of clock cycles per bit. TCR[3:0]
is used to programthe clock. TCR[7:4] are unused and will
return “0000” if read.
TCR[3:0]
Data Sheet Revision 1.1
Page 44
OXCB950
OXFORD SEMICONDUCTOR LTD.
Clock cycles per bit
0000 to 0011
0100 to 1111
16
4-15
Table 20: TCR Sample Clock Configuration
Use of the TCR does not require the device to be in 650 or
950 mode although only drivers that have been written to
take advantage of the 950 mode features will be able to
access this register. Writing 0x01 to the TCR will not switch
the device into 1x isochronous mode, this is explained in
the following section. (TCR has no effect in isochronous
mode). If 0x01, 0x10 or 0x11 is written to TCR the device
will operate in 16x mode.
Reading TCR will always return the last value that was
written to it irrespective of mode of operation.
Clock
Frequency
(MHz)
1.8432
7.3728
14.7456
18.432
32.000
33.000
40.000
50.000
60.000
CPR value
Effective
crystal
frequency
1.8432
1.8432
1.8432
1.8432
1.8417
1.8462
1.8391
1.8433
1.8824
Error from
1.8432MHz
(%)
0.00
0.00
0.00
0.00
0.08
0.16
0.22
0.01
2.13
Max. Baud rate
with CPR = 1,
TCR = 16
115,200
460,800
921,600
1,152,000
2,000,000
2,062,500
2,500,000
3,125,000
3,750,000
Max. Baud rate
with CPR = 1,
TCR = 4
460,800
1,843,200
3,686,400
4,608,000
8,000,000
8,250,000
10,000,000
12,500,000
15,000,000
0x08 (1)
0x20 (4)
0x40 (8)
0x50 (10)
0x8B (17.375)
0x8F (17.875)
0xAE (21.75)
0xD9 (27.125)
0xFF (31.875)
Table 21: Example clock options and their associated maximum baud rates
System Clock (MHz)
18.432
1.152M
983,040 1,228,800 2,133,333 2,666,667 3,333,333
526,571 1,053,257 1,316,571 2,285,714 2,857,143 3,571,429 4,285,714
567,077 1,134,277 1,417,846 2,461,538 3,076,923 3,846,154 4,615,384
614,333 1,228,800 1,536,000 2,666,667 3,333,333 4,166,667
670,182 1,340,509 1,675,636 2,909,091 3,636,364 4,545,455 5,454545
737,200 1,474,560 1,843,200
3.20M
819,111 1,638,400 2,048,000 3,555,556 4,444,444 5,555,556 6,666,667
921,500 1,843,200 2,304,000
4.00M
263,314 1,053,143 2,106,514 2,633,143 4,571,429 5,714,286 7,142,857 8,571428
307,200 1,228,667 2,457,600 3,072,000 5,333,333 6,666,667 8,333,333
368,640 1,474,400 2,949,120 3,686,400
460,800 1,843,000 3,686,400 4,608,000
Sampling
Clock
TCR
Value
1.8432
115,200
122,880
131,657
7.372
460,750
491,467
14.7456
921,600
32
40
50
60
16
15
14
13
12
11
10
9
8
7
6
5
4
0x00
0x0F
0x0E
0x0D 141,785
0x0C 153,600
0x0B
167,564
0x0A
184,320
0x09
204,800
0x08
230,400
0x07
0x06
0x05
0x04
2.00M
2.50M
3.125M
3.75M
4.00M
5.00M
4.00M
5.00M
6.00M
5.00M
6.25M
7.50M
10.00M
12.00M
15.00M
6.40M
8.00M
8.00M
10.00M
10.00M
12.50M
Table 22: Maximum Baud Rates Available at all ‘TCR’ Sampling Clock Values
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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(dòng)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(chēng):OXFORD 功能描述:Integrated High Performance UART Cardbus / 3.3v PCI interface
OXCF950 制造商:OXFORD 制造商全稱(chēng):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(chēng):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(chēng):PLX 功能描述:16-bit PC card/CF+ bridge to serial port
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