ADNS-3060 Avago Technologies US Inc., ADNS-3060 Datasheet - Page 34

• Manufacturer Part Number: ADNS-3060
• Description: Optical Mouse Sensor,DIP
• Manufacturer: Avago Technologies US Inc.

Specifications of ADNS-3060

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: Q2073278B

Frame_Period_Min_Bound_Lower
Access: Read/Write
Frame_Period_Min_Bound_Upper
Access: Read/Write
Data Type: 16-bit unsigned integer.
USAGE: This value sets the minimum frame period (the MAXIMUM frame rate) that may be selected by the automatic
frame rate control. Units are clock cycles. The formula is
Frame Rate = Clock Rate / Register value
To read from the registers, read Upper first followed by Lower. To write to the registers, write Lower first, followed by
Upper, then execute a write to the Frame_Period_Max_Bound_Upper and Lower registers. The minimum allowed write
value is 0x7E0E; the maximum is 0xFFFF.
Reading this register will return the most recent value that was written to it. However, the value will take effect only
after a write to the Frame_Period_Max_Bound_Upper and Lower registers. After writing to Frame_Period_Max_
Bound_Upper, wait at least two frame times before writing to Frame_Period_Min_Bound_Upper or Lower again. The
“Busy” bit in the Extended_Config register may be used in lieu of a timer to determine when it is safe to write. See the
Extended_Config register for more details.
In addition, the three bound registers must also follow this rule when set to non-default values:
Frame_Period_Max_Bound t Frame_Period_Min_Bound + Shutter_Max_Bound.
34
Field
Field
Bit
Bit
FBm
FBm
7
7
15
7
FBm
FBm
6
6
14
6
FBm
FBm
5
5
Reset Value: 0xAC (before SROM download)
0x7E (after SROM download)
Reset Value: 0x0D (before SROM download)
0x0E (after SROM download)
13
5
Address: 0x1B
Address: 0x1C
FBm
FBm
4
4
12
4
FBm
FBm
3
3
11
3
FBm
FBm
2
2
10
2
FBm
FBm
1
1
9
1
FBm
FBm
0
0
0
8