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
75 ©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
Auto Exposure
61 previewParams[3].skipframe uchar 0x00 RW
Bit 7—1means turn off fen
Bit 6
—1means skip state
Bit 5—1means skip first frame when LED On
Table 12: Driver Variables−Auto Exposure Driver (ID = 2)
Offs Name Type Default RW Description
0 vmt void*
59518 RW Reserved
2 windowPos uchar 0 RW
Position of upper left corner of first AE window
Bits [3:0]
—X0 in units of 1/16th of frame width
Bits [7:4]—Y0 in units 1/16th of frame height
New position written to this variable takes effect only
after REFRESH_MODE command is given to the
sequencer (seq.cmd is set to 6).
3 windowSize uchar 0xEF RW
Dimensions of 4 x 4 array of AE windows
Bits [3:0]
—width (in units of 1/16th of frame width)
decremented by 1
Bits [7:4]
—height (in units of 1/16th of frame height)
decremented by 1
New dimensions written to this variable take effect only
after REFRESH_MODE command is given to the
sequencer (seq.cmd is set to 6).
4 wakeUpLine uint R
Number of image row at which MCU wakes up to do AE
calculations. This number is automatically adjusted after
each change of the position and dimensions of the AE
windows.
6 Target uchar 60 RW
Target brightness
7 Gate uchar 10 RW
AE sensitivity
8SkipFramesuchar0RW
Frequency of AE updates
9 JumpDivisor uchar 2 RW
Factor reducing exposure jumps (1 = fastest jumps)
10 lumaBufferSpeed uchar 8 RW
Speed of buffering (32 = fastest, 1= slowest)
11 maxR12 uint 1200 RW
Maximum value of R12:0 (shutter delay)
13 minIndex uchar 0 RW
Minimum allowed zone number (i.e. minimum
integration time)
14 maxIndex uchar 24 RW
Maximum allowed zone number (i.e. maximum
integration time)
15 minVirtGain uchar 16 RW
Minimum allowed virtual gain
16 maxVirtGain uchar 128 RW
Maximum allowed virtual gain
17 maxADChi uchar 13 RW
Maximum ADC Vref_hi setting
18 minADChi uchar 11 RW
Minimum ADC Vref_hi setting
19 minADClo uchar 7 RW
Minimum ADC Vref_lo setting
20 maxDGainAE1 uint 128 RW
Maximum digital gain pre-LC
22 maxDGainAE2 uchar 32 RW
Maximum digital gain post-LC
23 IndexTH23 uchar 8 RW
Zone number to start gain increase in low-light. Sets
frame rate at normal illumination.
24 maxGain23 uchar 120 RW
Maximum gain to increase in low-light before dropping
frame rate. Sets frame rate at low-light.
Table 11: Driver Variables−Sequencer Driver (ID = 1) (continued)
Offs Name Type Default RW Description