ADNS-3050 Avago Technologies US Inc., ADNS-3050 Datasheet - Page 30

• Manufacturer Part Number: ADNS-3050
• Description: Optical Sensors - Board Mount Optical Nav Sensor
• Manufacturer: Avago Technologies US Inc.

Specifications of ADNS-3050

• Lead Free Status / Rohs Status: Details

AUTO_LED_CONTROL
Access: Read/Write
Data Type: Bit field
USAGE:
NOTE:
REST_MODE_CONFIG
Access: Read/Write
Data Type: Eight bit unsigned integer.
USAGE:
For product information and a complete list of distributors, please go to our web site:
Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies in the United States and other countries.
Data subject to change. Copyright © 2005-2011 Avago Technologies. All rights reserved.
AV02-2886EN - July 14, 2011
7:6
5:0
Bit
7:4
3:2
1
0
Bit(s)
Field RSVD
When AUTO LED is enable, the AUTO_LED current will be switched between low and high current setting
determined by LED_LO and LED_HI [1:0]. If LED_LO current setting is higher than the LED_HI, the current will
be based on the higher setting. For example if the LED_LO is 20mA and LED_HI is 15mA, the AUTOLED current
will be fi xed at 20mA.
Read operation to REST_MODE_CONFIG indicates which mode the sensor is in. Write operation into this register
will force the sensor into rest modes (Rest 1, 2 or 3). Write the value 0x40 into 0x45 register to force sensor into
Rest 1, 0x80 to Rest 2 or 0xC0 to Rest 3. To get out of any forced rest mode, write 0x00 into this register to set
back to normal mode.
Bit 7
Field
This is a “smart” LED drive feature whereby the LED current is self adjusting between the low and high current
settings (bit 3:1) according to the brightness of the tracking surface if this feature is enable (via clearing bit 0).
The brighter the surface, the lower the LED current will be. If A_LED_DIS (bit 0) is set, this means AUTO_LED
mode is disable, then the LED current determine by LSEL[1:0] setting in LED_CTRL register (0x40).
This register is used to set the operating mode of the ADNS-3050.
Bit 7
RM1
RM[1:0]
RSVD
Field Name
Field Name
Reserved
LED_HI
LED_LO
AUTO_LED_DIS
6
RSVD
Address: 0x43
Reset Value: 0x08
Address: 0x45
Reset Value: 0x00
6
RM0
Sensor Operating Mode
0x00: Normal (default)
0x01: Rest 1
0x02: Rest 2
0x03: Rest 3
Reserved
5
RSVD
Description
Description
Reserved
0x0: Auto LED high current is 15mA
0x1: Auto LED high current is 20mA
0x2: Auto LED high current is 30mA
0x3: Auto LED high current is 36mA
0x0: Auto LED low current is 15mA
0x1: Auto LED low current is 20mA
0x0: Enable Auto LED current switching
0x1: Disable Auto LED current switching
5
RSVD
4
RSVD
4
RSVD
3
LED_HI
www.avagotech.com
3
RSVD
2
LED_HI
2
RSVD
1
AUTO_LED_DS
1
RSVD
0
AUTO_LED_DS
0
RSVD