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6 blank, r, g, and b pins – NEC PD17062 User Manual

Page 263

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263

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PD17062

20.6 BLANK, R, G, AND B PINS

All these pins are CMOS push-pull output pins. They output an active-high signal. The BLANK pin outputs

a signal to turn off a broadcasting picture. The R, G, and B pins output character pattern data. If rimming

is not specified, the BLANK signal is the same as the character pattern signal (generated by ORing the R, G,

and B signals). If rimming is specified, the BLANK signal output from the BLANK pin is a waveform enveloping

the character pattern signal.

Fig. 20-11 IDC Output Waveform

(a) When rimming is not specified

(b) When rimming is specified

Pattern signal
(R, G, and B pins)

Blank signal
(BLANK pin)

Pattern signal
(R, G, and B pins)

Blank signal
(BLANK pin)