Datasheet
Table Of Contents
- 1/3.2-Inch System-On-A-Chip (SOC) CMOS Digital Image Sensor
- Features
- Applications
- Ordering Information
- General Description
- Feature Overview
- Typical Connection
- Ballout and Interface
- Architecture Overview
- Registers and Variables
- Registers
- Registers
- IFP Registers, Page 1
- IFP Registers, Page 2
- JPEG Indirect Registers
- Table 8: JPEG Indirect Registers (See Registers 30 and 31, Page 2)
- Firmware Driver Variables
- Table 9: Drivers IDs
- Table 10: Driver Variables-Monitor Driver (ID = 0)
- Table 11: Driver Variables-Sequencer Driver (ID = 1)
- Table 12: Driver Variables-Auto Exposure Driver (ID = 2)
- Table 13: Driver Variables-Auto White Balance (ID = 3)
- Table 14: Driver Variables-Flicker Detection Driver (ID = 4)
- Table 15: Driver Variables-Auto Focus Driver (ID = 5)
- Table 16: Driver Variables-Auto Focus Mechanics Driver (ID = 6)
- Table 17: Driver Variables-Mode/Context Driver (ID = 7)
- Table 18: Driver Variables-JPEG Driver (ID = 9)
- Table 19: Driver Variables-Histogram Driver (ID = 11)
- MCU Register List and Memory Map
- JPEG Indirect Registers
- Output Format and Timing
- Sensor Core
- Feature Description
- PLL Generated Master Clock
- PLL Setup
- Window Control
- Pixel Border
- Readout Modes
- Figure 20: 6 Pixels in Normal and Column Mirror Readout Modes
- Figure 21: 6 Rows in Normal and Row Mirror Readout Modes
- Table 30: Skip Values
- Figure 22: 8 Pixels in Normal and Column Skip 2x Readout Modes
- Figure 23: 16 Pixels in Normal and Column Skip 4x Readout Modes
- Figure 24: 32 Pixels in Normal and Column Skip 8x Readout Modes
- Figure 25: 64 Pixels in Normal and Column Skip 16x Readout Modes
- Table 31: Row Addressing
- Table 32: Column Addressing
- Frame Rate Control
- Context Switching
- Integration Time
- Flash STROBE
- Global Reset
- Analog Signal Path
- Analog Inputs AIN1-AIN3
- Firmware
- Firmware
- Start-Up and Usage
- General Purpose I/O
- Introduction
- GPIO Output Control Overview
- Waveform Programming
- Notification Signals
- Digital and Analog Inputs
- GPIO Software Drivers
- Auto Focus
- Figure 42: Search for Best Focus
- Figure 43: Scene with Two Potential Focus Targets at Different Distances from Camera
- Figure 44: Dependence of Luminance-Normalized Local Sharpness Scores on Lens Position
- Figure 45: Example of Position Weight Histogram Created by AF Driver
- Figure 46: Auto Focus Windows
- Figure 47: Computation of Sharpness Scores and Luminance Average for an AF Window
- Table 41: Examples of AF Filters that can be Programmed into the MT9D111
- Spectral Characteristics
- Electrical Specifications
- Packaging
- Appendix A: Two-Wire Serial Register Interface
- Protocol
- Sequence
- Bus Idle State
- Start Bit
- Stop Bit
- Slave Address
- Data Bit Transfer
- Acknowledge Bit
- No-Acknowledge Bit
- Page Register
- Sample Write and Read Sequences
- Figure 52: WRITE Timing to R0x09:0-Value 0x0284
- Figure 53: READ Timing from R0x09:0; Returned Value 0x0284
- Figure 54: WRITE Timing to R0x09:0-Value 0x0284
- Figure 55: READ Timing from R0x09:0; Returned Value 0x0284
- Figure 56: Two-Wire Serial Bus Timing Parameters
- Table 46: Two-wire Serial Bus Characteristics
- Revision History
PDF: 09005aef8202ec2e/Source: 09005aef8202ebf7 Micron Technology, Inc., reserves the right to change products or specifications without notice.
MT9D111__5_REV5.fm - Rev. B 2/06 EN
76 ©2004 Micron Technology, Inc. All rights reserved.
MT9D111 - 1/3.2-Inch 2-Megapixel SOC Digital Image Sensor
JPEG Indirect Registers
Micron Confidential and Proprietary
25 weights uchar 0xFF RW
Bits [7:4]—background weight
Bits [3:0]
—center zone weight
26 status uchar 192 RW
AE status
Bit 0
—1 if AE reached the limit
Bit 1
—1 if R9 is changed (need to skip frame)
Bit 2—ready
Bit 3—do mettering mode
Bit 4
—mettering mode is done
Bit 6—on/Off overexpose fit
Bit 7—on/Off overexpose compensation
27 CurrentY uchar R
Last measured luminance
28 R12 uint RW
Current shutter delay value
30 Index uchar R
Current zone (integration time)
31 VirtGain uchar RW
Current virtual gain
32 ADC_hi uchar
R Current ADC V
REF_HI value
33 ADC_lo uchar
R Current ADC V
REF_LO value
34 DGainAE1 uint
RW Current digital gain pre-LC
36 DGainAE2 uchar
RW Current digital gain post-LC
37 R9 uint
RW Current R9:0 value (integration time)
39 R65 uchar
RW Current ADC V
REF values
40 rowTime uint 531
RW Row time divided by 4 (in master clock periods)
42 gainR12 uchar
128 R Gain compensating too low maxR12 (128 = unit gain)
43 SkipFrames_cnt uchar
R Counter of skipped frames
44 BufferedLuma uint
R Current time-buffered measured luma
46 dirAE_prev uchar
R Previous state of AE
47 R9_step uint 157
RW Integration time of one zone
50 maxADClo uchar
R Maximum ADC Vref_lo setting
51 physGainR uint
R Physical (analog) R gain
53 physGainG uint
R Physical (analog) G gain
55 physGainB uint
R Physical (analog) B gain
82 mmEVZone1 uchar 16
RW EV threshold for scenes containing the sun
83 mmEVZone2 uchar 12
RW EV threshold for bright outdoor scenes
84 mmEVZone3 uchar 8
RW EV threshold for indoor or outdoor twilight scenes
85 mmEVZone4 uchar 2
RW EV threshold for night scenes
86 mmShiftEV uchar 13
RW Exposure Value shift. Adjust this value for given lens.
87 numOE uchar
R Number of overexposed zones
Table 12: Driver Variables−Auto Exposure Driver (ID = 2) (continued)
Offs Name Type Default RW Description