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參數(shù)資料
| 型號： | EM83050 |
| 英文描述： | Dual Advanced Synchronous Rectified Buck MOSFET Drivers with Protection Features; Temperature Range: -40°C to 85°C; Package: 16-QFN T&R |
| 中文描述： | 鍵盤編碼器為Windows 95，98 |
| 文件頁數(shù)： | 15/20頁 |
| 文件大?。?/td> | 116K |
| 代理商： | EM83050 |
* This specification are subject to be changed without notice.
EM83050H
KEYBOARD ENCODER
4
9.16.1999
Preliminary
- Responds ACK.
- Updates status indicators.
- Returns to previous scanning state.
Echo ( Hex EEH )
- Responds with EE hex.
- Returns to previous scanning state.
Invalid commands ( Hex EF and F1 )
- Returns a RESEND command.
- Returns to previous scanning state.
Select Alternate Scan Codes ( Hex F0 )
- Responds ACK.
- Clears output buffer.
- Sets the default typematic rate/delay.
- Clears last typematic key.
- Receives option byte.
- Responds ACK.
- Option byte =
01 : selects scan code set 1
02 : selects scan code set 2
03 : selects scan code set 3
- Returns to previous scanning rate.
Read ID (F2)
- Responds with ACK.
- Discontinues scanning.
- Sends two ID bytes. The second byte will be sent within 500 uS after first byte.
- Resumes scanning.
Set Typematic Rate/Delay ( Hex F3 )
- Responds ACK.
- Receives rate/delay value byte
- Responds ACK.
- Set rate/delay (* Note 1)
- Returns to previous scanning state.
* Note 1
1. Repeat period = ( 8+A ) x ( 2B) x 0.00417 seconds
A : binary value of bits 2, 1, and 0.
B : binary value of bits 4 and 3.
2. Delay = ( C +1 ) x 250 milliseconds
C : binary value of bits 6 and 5. Bit 7 is always 0.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| EM83050H | 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:KEYBOARD ENCODER |
| EM83053 | 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:KEYBOARD ENCODER |
| EM83053A | 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:KEYBOARD ENCODER |
| EM83053AH | 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:KEYBOARD ENCODER |
| EM83053BH | 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:KEYBOARD ENCODER |
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