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28 7. 5 partial read – Toshiba IK-TF9C User Manual

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7. 5 Partial Read

( 1 ) Partial Scanning OFF (All pixels scanning)

In this mode, all pixels independent signal from the DIGITAL connector is output each 1/20 second (Line order
output).

( 2 ) Partial Scanning ON

In this mode, the pixel signal of the vertical center portion from the DIGITAL connector is output.

In the E.30fps or E.40fps mode, the partial scanning and the all pixels scanning can be switched by the
DIGITAL terminal (CC2: partial scanning control signal).

1/20s (1592H)

Video interval

image

1/30s (1060H): When 30fps is selected
1/40s (774H): When 40fps is selected

Video interval

image

Blanking interval

B

Blanking interval

D

Total

A

Video interval

C

RGB data

(video interval image)

(Internal VD)

FVAL

LVAL,
DVAL

Video period

CC2

‘L’

‘H’

E.30fps

Partial scanning 30fps

All pixels scanning

E.40fps

Partial scanning 40fps

All pixels scanning

Mode

30fps

40fps

Total A

1060H

774H

Video interval C

972H

644H

Blanking interval B

56H

78H

Blanking interval D

32H

52H

( 3 ) When Partial Scanning Mode is ON