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
129 ©2004 Micron Technology, Inc. All rights reserved.
MT9D111 - 1/3.2-Inch 2-Megapixel SOC Digital Image Sensor
Feature Description
Micron Confidential and Proprietary
Context Switching
When the sensor is in the SOC bypass mode, R0xF2:0 is designed to enable easy switch-
ing between sensor modes. Some key registers and bits in the sensor have two physical
register locations, called contexts. Bits 0, 1, and 3 of R0xF2:0 control which context regis-
ter context is currently in use. A “1” in a bit selects context B, while a “0” selects context A
for this parameter. The select bits can be used in any combination, but by default are
setup to allow easy switching between preview mode and full resolution mode:
The horizontal blanking and vertical blanking values for the two contexts are chosen so
that row time is preserved between contexts. This ensures that changing contexts does
not affect integration time. A few more control bits are also available through the context
register (R0xF2:0) so that flash and restarting the sensor can be done simultaneously
with changing contexts. See Table 5, "Sensor Register Description," on page 29 for more
information.
Settings for skip, 1 ADC mode, and binning can be set separately for context B and con-
text A using R0x20:0 and R0x21:0, respectively. When these settings are referred to in this
document, the register is dependent on what context is set in R0xF2:0. For the default
(no bypass) mode, context switching is controlled by the sequencer (ID=1) driver.
Table 34: Minimum Row Time Parameters
Parameter
Default / 2 ADC
Mode, No Binning
1 ADC Mode,
No Binning
2ADCMode,
Binning
1 ADC Mode, Binning
ROW_TIME(MIN) 473 mclks 488 mclks
= 244 pixclks
931 mclks 946 mclks = 473 pixclks
pointer_operations 461 mclks 464 mclks 919 mclks 922 mclks
Context B (Default context)
R0xF2:0 = 0x000B (Context B)
R0x05:0 = 0x015C (Horizontal blanking, context B)
R0x06:0 = 0x0020 (Vertical Blanking, context B)
R0x20:0 = 0x0000 (2 ADCs, no column or row skip)
Description:
Full resolution UXGA (1,600 x 1,200) image at 15 fps
Context A (Alternate context, preview mode)
R0xF2:0 = 0x0000 (Context A)
R0x07:0 = 0x00AE (Horizontal blanking, context A)
R0x08:0 = 0x0010 (Vertical blanking, context A)
R0x21:0 = 0x0490 (1 ADC, 2x column and row skip)
Description:
Half-resolution SVGA (800 x 600) image at 30 fps