MT9T001 データシートの表示（PDF） - Micron Technology

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MT9T001

3-MEGAPIXEL DIGITAL IMAGE SENSOR

Micron Technology 

PRELIMINARY

MT9T001

3-MEGAPIXEL DIGITAL IMAGE SENSOR

Table 6: Register Descriptions (continued)

REGISTER BIT

DESCRIPTION

Read Mode 3

0x21

0 Global Reset—default = 0x0000—when set, snapshot mode will make use of the global reset

— that is, the entire array will be released from reset simultaneously. Ineffective unless

Snapshot (Reg0x1E[8]) is set.

1

Row Address Mode

0x22

2:0

Use GSHT_CTL—default = 0x0000.

When set, the leading edge of the GSHT_CTL pad signal will be used to start the shutter

sequence in snapshot mode, and the trailing edge will start the read sequence. When clear, the

leading edge of the TRIGGER pad signal will be used to initiate the shutter sequence, the

trailing edge of GSHT_CTL will start the exposure, and the trailing edge of the TRIGGER pad

signal will be used to start the strobe and readout. Ineffective unless Snapshot (Reg0x1E[8])

and Global Reset are set.

Row Skip—the number of row-pairs to skip for every row read. For example, “0” means read

every row pair. “1” is skip 2x; 2 is skip 3x, etc. If Row Bin is non-zero, this should be set to the

interval between the first rows in each bin. For full binning, Row Skip equals Row Bin.

5:4 Row Bin—the number of rows to be read per row output minus one. For normal read out, this

should be “0.” For Bin 2x, it should be “1”; for Bin 3x, it should be “2.”

Column Address Mode

0x23

2:0 Column Skip—the number of column-pairs to skip for every pair read. Zero means read every

column. “1” means skip one pair for every pair read (Skip 2x); 2 means skip 2 pairs for every

pair read (Skip 3x) etc.

5:4 Column Bin—the number of columns to be addressed per column read out minus one. Zero will

produce standard 1:1 read out. A value of “1” will produce Bin 2x; “2” would be Bin 3x.

Note: Column start address value must be a multiple of Reg0x23 [5:4] + 1.

Green1 Gain

0x2B

6:0 Green1 analog gain—default = 0x08 (8) = 1x gain.

14:8 Green1 digital gain—default = 0x00 (0) = 1x gain.

Blue Gain

0x2C

6:0 Blue analog gain—default = 0x08 (8) = 1x gain.

14:8 Blue digital gain—default = 0x00 (0) = 1x gain.

Red Gain

0x2D

6:0 Red analog gain—default = 0x08 (8) = 1x gain.

14:8 Red digital gain—default = 0x00 (0) = 1x gain.

Green2 Gain

0x2E

6:0 Green2 analog gain—default = 0x08 (8) = 1x gain.

14:8 Green2 digital gain—default = 0x00 (0) = 1x gain.

Global Gain

0x35

6:0 Global analog gain—default = 0x08 (8) = 1x gain.

14:8 Global digital gain—default = 0x00 (0) = 1x gain. This register can be used to set all four gains

at once. When read, it will return the value stored in Reg0x2B.

Black Level

0x49

11:2 Desired black level in image.

09005aef80c64010

MT9T001_3100_DS_2.fm - Rev. C 9/04 EN

17

Micron Technology, Inc., reserves the right to change products or specifications without notice.

©2003 Micron Technology, Inc. All rights reserved.

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