- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄97896 > EKM8022 Ultra Low ON-Resistance, +1.1V to +4.5V Single Supply, SPDT Analog Switch; Temperature Range: -40°C to 85°C; Package: 6-SC-70 T&R PDF資料下載
參數(shù)資料
| 型號(hào)： | EKM8022 |
| 英文描述： | Ultra Low ON-Resistance, +1.1V to +4.5V Single Supply, SPDT Analog Switch; Temperature Range: -40°C to 85°C; Package: 6-SC-70 T&R |
| 中文描述： | 鼠標(biāo)控制器 |
| 文件頁數(shù)： | 7/13頁 |
| 文件大?。?/td> | 481K |
| 代理商： | EKM8022 |
eKM8003 Optical Mouse Controller
(Revision Date: 2002/12/17)
This specification may change without further notice.
3
4.
Collision detection on SDIO
- The only time that the ADNS-2610/2620 drives the SDIO line is during a READ operation. To avoid
data collisions, the microcontroller should relinquish SDIO before the falling edge of SCK after the last
address bit. Then the ADNS-2610/2620 begins to drive SDIO after the next rising edge of SCK. Next,
the ADNS-2610/2620 relinquishes SDIO within 160 ns of the falling SCK edge after the last data bit.
The microcontroller can begin driving SDIO any time after that. In order to maintain low power
consumption in normal operation or when the PD pin is pulled high, the microcontroller should not
leave SDIO floating until the next transmission (although that will not cause any communication
difficulties).
5.
In case of synchronization failure, both the ADNS-2610/2620 and the microcontroller may drive SDIO.
The ADNS-2610/2620 can withstand 30 mA of short circuit current and will withstand infinite duration
short circuit conditions.
6.
The microcontroller can verify a successful write operation by issuing a read command to the same
address and comparing the written data to the read data.
7.
The microcontroller can verify the synchronization of the serial port by periodically reading the product
ID from status register.
4.2
Optical sensor resolution selection
Optical Sensor ANDS-2051 resolution can be programmed as 400 or 800 cpi (counts per inch).
The eKM8003 has a selection pin, CPIS, to select the resolution. The default resolution is 400 cpi. If
the selection pin is tied to ground, the eKM8003 will program the ANDS-2051 to 800 cpi. To program the
resolution, the eKM8003 write data into the ANDS-2051’s configuration register address, 0x0a.
4.3
Registers of ADNS-2051
Product ID
Address:0x00
Reset Value: 0x02
Usage: The value in this register does not change, it can be used to verify that the
serial communications link is OK.
Motion
Address: 0x02
Reset Value: 0x00
7
6
5
4
3
2
1
0
MOT Reserved FAULT OVFY OVFX Reserved Reserved RES
Usage: Register 0x02 allows the user to determine if motion has occurred since the last time it was
read. If so, then the eKM8003 should read registers 0x03 and 0x04 to get the accumulated
motion. It also tells if the motion buffers have overflowed and whether or not an LED fault
occurred since the last reading. The current resolution is also shown.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| EL1056AC | Monolithic High-Speed Pin Driver |
| EL1056ACM | Monolithic High-Speed Pin Driver |
| EL1056CM | Monolithic High-Speed Pin Driver |
| EL1505C | Differential Line Driver(差分線驅(qū)動(dòng)器) |
| EL1881CN | Sync Separator, Low Power |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EKM8022A | 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:USB & PS/2 Mouse Controller |
| EKM8022B | 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:USB & PS/2 Mouse Controller |
| EKM8025 | 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:USB & PS/2 Mouse Controller |
| EKM8025AB | 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:USB & PS/2 Mouse Controller |
| EKM8025AC | 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:USB & PS/2 Mouse Controller |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。