Fujitsu M3099EX/EH manual 58

Control register A#4

Control register B#4

X’20' is set when power is turned on or when a CLEAR command is issued for initialization.

• This register is valid when the IPC II option is installed.

	b7		b0
A#4				(Dynamic threshold mode setting)
	0	0
B#4
				Binary data when the threshold equals
				video data to be binary-coded. (*1)
				0: Output binary data is "1". (Black)
				1: Output binary data is "0". (White)
				Noise removing of 2 × 2 matrix
				0: OFF
				1: ON
				Noise removing of 3 × 3 matrix
				0: OFF
				1: ON
				Noise removing of 4 × 4 matrix
				0: OFF
				1: ON
				Noise removing of 5 × 5 matrix
				0: OFF
				1: ON
				Enables the noise removing bits
				(bits 1-4 when this bit is active).
				0: ON
				1: OFF

*1: When this bit is "0", the output video data is black if the gradation of the video data is equal to or larger than threshold. When this bit is "1", the output video data is white if the gradation of video data is equal to or larger than threshold.

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