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參數(shù)資料
| 型號(hào)： | EM85000 |
| 廠商： | ELAN Microelctronics Corp . |
| 英文描述： | APPLE DESKTOP BUS MOUSE CONTROLLER |
| 中文描述： | 蘋(píng)果桌面總線鼠標(biāo)控制器 |
| 文件頁(yè)數(shù)： | 5/9頁(yè) |
| 文件大?。?/td> | 133K |
| 代理商： | EM85000 |
5
* This specification are subject to be changed without notice.
EM85000
APPLE DESKTOP BUS MOUSE CONTROLLER
11.6.1995
3. Tit (200us)signal:If no collision has been detected,
LISTEN command:Device waiting until Tit=“0” then device start to read data in.
TALK command:Device send two bytes data after Tit.
4. Stop bit(“0”).
5. Start bit(“1”).
6. Service Request:When the device has data to report with SRQ=1,it will pull the ADB bus to be low for 300us
after first stop bit of the command send by Host.
COLLISION:
2. Losing device:
a. Device detects “0” at Tit-time before device wants to send start bit.
b. Data line must hold “1” at Tit-time,but device detects “0” by another device send.
c. Device detects“0”while sending“1”.
3. Losing device must give up ADB bus and data is saved.
4. Every devices must have detecting collision ability.
DYNAMIC SAMPLING RATE
When the mouse is moved,the frequence of sampling rate depends on the mouse’s speed.If the mouse is still,the
sampling rate is at low speed(1KHz).It can reduce system power consumption.
DPI
DOTS
SPEED(cm/sec)
0
- - - - - - - - -
1
2.54
200
2
5.08
4
10.16
0
- - - - - - - - -
1
1.5875
320
2
3.175
4
6.35
0
- - - - - - - - -
1
1.27
400
2
2.54
4
5.08
0
- - - - - - - - -
1
0.907
560
2
1.814
4
3.632
SAMPLING RATE
1KHz
2.5KHz
5KHz
10KHz
1KHz
2.5KHz
5KHz
10KHz
1KHz
2.5KHz
5KHz
10KHz
1KHz
2.5KHz
5KHz
10KHz
Formula:speed=[ ( dots / DPI ) * 2.54 ) ] / Tb.
EX:dot=1,DPI=200 dots/inch,Tb(Time Base)=5ms
speed=[ ( 1 / 200 ) * 2.54 ] / 5ms=2.54 cm/sec
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| EM91203 | TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE |
| EM91203A | TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE |
| EM91203AP | TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE |
| EM91203B | TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE |
| EM91203BP | TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EM85001 | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Apple desktop bus mouse controller |
| EM-868U | 制造商:SPC Multicomp 功能描述:MICROPHONE -78DB UNIDIRECTIONAL 18KHZ 制造商:SPC Multicomp 功能描述:MICROPHONE, -78DB, UNIDIRECTIONAL, 18KHZ; Directivity:Unidirectional; Output Impedance:250ohm; Frequency Response Min:50Hz; Frequency Response Max:18kHz; Sensitivity:-78dB 3dB at 1kHz; Frequency:18kHz; Sound Level SPL:135dB ;RoHS Compliant: Yes |
| EM8D100L | 制造商:PROTEC 制造商全稱(chēng):Protek Devices 功能描述:EMI FILTER/TVS ARRAY |
| EM8D-100L | 制造商:PROTEC 制造商全稱(chēng):Protek Devices 功能描述:emi filter/tvs array |
| EM8D-100L_11 | 制造商:PROTEC 制造商全稱(chēng):Protek Devices 功能描述:emi filter/tvs array |
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