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__6_REV5.fm - Rev. B 2/06 EN
142 ©2004 Micron Technology, Inc. All rights reserved.
MT9D111 - 1/3.2-Inch 2-Megapixel SOC Digital Image Sensor
Firmware
Micron Confidential and Proprietary
To continue with capture after CM_LOCK
1. Disable all automatic functions in PreviewLeave. Set flash mode to
MODE_FLASH_LOCKED
2. Disable CaptureEnter state
3. Perform CM_CAPTURE. That restores flash state in PreviewLeave and make a snap-
shot
To perform CM_CAPTURE without CM_LOCK
1. Set PreviewLeave flash configuration to MODE_FLASH_AUTO. Set the state's AE and
WB to fast settling.
2. Disable CaptureEnter state
3. Perform CM_CAPTURE. That automatically turns flash on, perform fast settling and
make a snapshot
Note: When the LED flash is turned on, the current frame coming out has not seen the effect
of the LED; therefore, use the SkipFrame variable to skip a frame when turning the
LED on.
Using Xenon Burst Flash
This type of flash fires on every frame. In many respects it is similar to LED, except that
the sensor integration time must always be more than 1 frame.
Using Xenon Flash
The three flash types have their own specifics.
To capture images using one-shot Xenon, do the following.
1. If using CM_LOCK, carry out the lock operation as usual
2. Before issuing CM_CAPTURE, re-program the sequencer to disable automatic
advancement from state to state, seq.StepMode
3. Reprogram CaptureEnter state to have all automatic functions off (AE, AF, WB, FD)
4. Advance to ModeChange and load Xenon-specific parameters directly into the color
pipeline
• color matrix for Xenon R96-R102:1
• integration time R9:0 (1 full frame or more)
• analog gains, R0x2B–0x2E:0
• digital gains R78:1, R106–109:1
Low-Light Operation
A number features are available to improve image quality in low-light conditions:
• increased noise suppression in interpolation
• reduced color saturation
• reduced aperture correction
• increased aperture correction threshold
•Y-filter
The seq.sharedParams.LLmode variable enables individual low-light features.
seq.sharedParams.LLvirtGain1 and 2 specify gain thresholds to enable some of these
features. Values are given by seq.sharedParams.LLInterpThresh1/2, LLSat1/2,
LLApCorr1/2 and LLApThresh1/22.