STV-376-E01 STMICROELECTRONICS [STMicroelectronics], STV-376-E01 Datasheet - Page 16

• Manufacturer Part Number: STV-376-E01
• Description: Ultra-low power laser motion sensor for laser mouse applications
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

I2C control register map
Table 7.
1. Internal ACCUMULATOR is reduced from this value every time it is read.
2. Default changes to 1 for a laser system after host_config_done (that is, system set up for optics without a lens)
16/30
Address
0x61
0x62
0x82
Bits
[7:0]
[0]
[1]
[2]
[3]
[4]
[1]
I2C control register map (continued)
IMAGE[7:0]
Frame dump mode enable
Frame dump start
Frame ready for download
Frame upload complete
PCI Test enable
Timer ITR enable
Name
R/W
R/W
R/W
RW
RO
RO
Default
0h
0h
0h
0h
0h
1h
This register contains the pixel value
when the frame dump feature has
been activated (reg 0x62, bit 0).
To read the 400 pixels from the
captured frame, the register must be
read 400 consecutive times.
If set to 1, the device will capture a
single frame. When the frame is
captured and ready to be downloaded
via reg 0x61, bit 2 (frame ready) is set.
Bit is set at start of frame dump
This bit is asserted when the captured
frame is ready to be downloaded via
reg 0x61.
When frame download is complete,
bit 3 is reset
This flag is set when all 400 pixels
have been read by I2C host.
If set Motion, Laser_NEN, Reset_Out
and VGate_On become PCI data
ouptuts (QCLK, FST and 2 bits serial
data)
Timer interrupt enable.
Description
VT5376