ADNB-7052-EV Avago Technologies US Inc., ADNB-7052-EV Datasheet - Page 22

• Manufacturer Part Number: ADNB-7052-EV
• Description: OPTICAL MOUSE EVALUATION KIT
• Manufacturer: Avago Technologies US Inc.
• Series: LaserStream™r
• Type: Optical Mouser

Specifications of ADNB-7052-EV

• Contents: Mouse Sensor, VCSEL, Lens, Laser Assembly Clip and Documentation
• Description/function: Laser Mouse Bundle
• Interface Type: SPI
• Product: Display Modules
• Touch Panel: No Touch Panel
• For Use With/related Products: ADNS-7050
• Lead Free Status / Rohs Status: Details
• Other names: Q2656643; Q2755626

Data Type: Bit field
USAGE: Register 0x02 allows the user to determine if motion has occurred since the last time it was read. If the MOT
bit is set, then the user should read registers 0x03 and 0x04 to get the accumulated motion. Read this register before
reading the Delta_X and Delta_Y registers.
Writing anything to this register clears the MOT and OVF bits, Delta_X and Delta_Y registers. The written data byte is
not saved.
Internal buffers can accumulate more than eight bits of motion for X or Y. If either one of the internal buffers over-
flows, then absolute path data is lost and the OVF bit is set. To clear the overflow, write anything to this register.
Check the OVR bit if more than 4” of motion is accumulated without reading it. If bit set, discard the motion as errone-
ous. Write anything to this register to clear the overflow condition.
The PIXRDY bit will be set whenever a valid pixel data byte is available in the Pixel_Dump register. Check that this bit
is set before reading from Pixel_Dump. To ensure that the Pixel_Grab pointer has been reset to pixel 0,0 on the initial
write to Pixel_Grab, check to see if PIXFIRST is set to high.
Field Name
MOT
PIXRDY
PIXFIRST
initiating an increment to pixel 0,0.
OVF
LP_VALID
FAULT
NOTE: Avago Technologies recommends that registers 0x02, 0x03, and 0x04 be read sequentially.
22
Motion
Access: Read/Write
Address: 0x02
Description
Motion since last report
0 = No motion
1 = Motion occurred, data ready for reading in Delta_X and Delta_Y registers
Pixel Dump data byte is available in Pixel_Dump register.
0 = Data not available
1 = Data available
This bit is set when the Pixel_Grab register is written to or when a complete pixel array has been read,
0 = Pixel_Grab data not from pixel 0,0
1 = Pixel_Grab data is from pixel 0,0
Motion overflow, ∆Y and/or ∆X buffer has overflowed since last report.
0 = No overflow
1 = Overflow has occurred
Laser Power Settings
0 = Register 0x1a and register 0x1f or register 0x1c and register 0x1d do not have complementary values.
1 = Laser power is valid
Indicates that XY_LASER is shorted to GND or VDD
0 = No fault detected
1 = Fault detected.
Bit
Field
Reset Value: 0x00
7
MOT
6
PIXRDY
5
PIXFIRST
4
OVF
3
LP_VALID
2
FAULT
1
Reserved
0
Reserved