JAI TMC-4200GE operation manual TM-4200GE Hardware Programmable Scan Area

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TM-4200GE Hardware

9.1.2Programmable Scan Area

In Programmable Scan Area Mode, users can specify both the start point of the active scan area and the total active lines through the serial communication commands. The area selected by users is transferred out line by line. The rest of the lines are dumped out using the fast dump function of the CCD. The frame rate in this mode varies according to the selected active area. When the active area starts from x row, and the active lines are y lines, the frame rate can be calculated using the following formulas.

⎧			1			Dual Tap
⎪
	((n f		+16) + nr ) *32.5μs
⎪
Frame Rate = ⎨			1
⎪						SingleTap
	((n		+16) + n		) *58.1μs
⎪		f		r
⎩

Where,

⎧

x +16

remainder of

x + 16

= 0

⎪int(

)

n f

N

N

= ⎨

x +16

x + 16

⎪int(

) +1

remainder of

≠ 0

N

⎩

N

⎧

2056 − x − y

)

remainder of

2056 − x − y

= 0

⎪int(

N

N

nr = ⎨

2056 − x − y ) +1

remainder of

2056 − x − y

≠ 0

⎪int(

⎩

N

N

N =

⎧8

Dual Tap

⎩⎨15

SingleTap

For a color CCD, the upper-left Bayer pattern changes, depending on the start point location. If the start point is the odd row, the upper-left Bayer pattern is G. In RG if the start point is the even row, the upper-left bayer pattern is B in BG.

Operation