Motorola 6847 - Revision history

Barberd: Redirected page to Video Display Generator

2026-04-14T19:58:03Z

Redirected page to Video Display Generator

← Older revision		Revision as of 15:58, 14 April 2026
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	~~{{Merge\|VDG}}~~		#REDIRECT [[Video Display Generator]]
	~~{{Merge\|Video Display Generator}}~~
	The MC6847 is a video display generator chip that is designed for the 6800 family of microprocessors. It reads data from memory (via the [[SAM]] chip) and displays the contents on screen. The 6847 is used on Coco 1 and 2's only; this function was replaced by the custom [[GIME]] chip in Coco 3 models.

	~~The chip provides a 32×16 alphanumeric display, or graphic displays up to 256×192 pixels in resolution. Additionally, a variety of "semigraphics" modes are provided.~~

	~~On the Coco, the familiar dark-green on light-green text is generated as a fundamental function of this chip.~~

	In Coco 1's and most Coco 2's, the 6847 is not capable of displaying lowercase. Instead, lower case text appears inverted. Later Coco 2's replaced the 6847 with a 6847T1 that can display proper lower case text.

	~~==See Also==~~
	*[[VDG]]
	*[[Video Display Generator]]
	*Wikipedia article on the [http://en.wikipedia.org/wiki/Motorola_6847 Motorola 6847]
	*Datasheet http://instruct1.cit.cornell.edu/courses/ee476/ideas/mc6847.pdf

	~~[[Category:Hardware~~]]

Diego bf109 at 14:27, 14 April 2020

2020-04-14T14:27:53Z

← Older revision		Revision as of 10:27, 14 April 2020
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			{{Merge\|VDG}}
			{{Merge\|Video Display Generator}}
	The MC6847 is a video display generator chip that is designed for the 6800 family of microprocessors. It reads data from memory (via the [[SAM]] chip) and displays the contents on screen. The 6847 is used on Coco 1 and 2's only; this function was replaced by the custom [[GIME]] chip in Coco 3 models.		The MC6847 is a video display generator chip that is designed for the 6800 family of microprocessors. It reads data from memory (via the [[SAM]] chip) and displays the contents on screen. The 6847 is used on Coco 1 and 2's only; this function was replaced by the custom [[GIME]] chip in Coco 3 models.

Diego bf109: Diego bf109 moved page 6847 to Motorola 6847: Correct full name of the part.

2020-04-14T13:59:18Z

Diego bf109 moved page 6847 to Motorola 6847: Correct full name of the part.

← Older revision	Revision as of 09:59, 14 April 2020
(No difference)

Diego bf109 at 13:57, 14 April 2020

2020-04-14T13:57:46Z

← Older revision		Revision as of 09:57, 14 April 2020
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	==See Also==		==See Also==
			*[[VDG]]
			*[[Video Display Generator]]
	*Wikipedia article on the [http://en.wikipedia.org/wiki/Motorola_6847 Motorola 6847]		*Wikipedia article on the [http://en.wikipedia.org/wiki/Motorola_6847 Motorola 6847]
	*Datasheet http://instruct1.cit.cornell.edu/courses/ee476/ideas/mc6847.pdf		*Datasheet http://instruct1.cit.cornell.edu/courses/ee476/ideas/mc6847.pdf

	[[Category:Hardware]]		[[Category:Hardware]]

Polluks: Category

2015-09-10T21:53:11Z

Category

← Older revision		Revision as of 17:53, 10 September 2015
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	The MC6847 is a video display generator chip that is designed for the 6800 family of microprocessors. It reads data from memory (via the [[SAM]] chip) and displays the contents on screen. The 6847 is used on Coco 1 and 2's only; this function was replaced by the custom [[GIME]] chip in Coco 3 models.		The MC6847 is a video display generator chip that is designed for the 6800 family of microprocessors. It reads data from memory (via the [[SAM]] chip) and displays the contents on screen. The 6847 is used on Coco 1 and 2's only; this function was replaced by the custom [[GIME]] chip in Coco 3 models.

	The chip provides a ~~32x16~~ alphanumeric display, or graphic displays up to ~~256x192~~ pixels in resolution. Additionally, a variety of "semigraphics" modes are provided.		The chip provides a 32×16 alphanumeric display, or graphic displays up to 256×192 pixels in resolution. Additionally, a variety of "semigraphics" modes are provided.

	On the Coco, the familiar dark-green on light-green text is generated as a fundamental function of this chip.		On the Coco, the familiar dark-green on light-green text is generated as a fundamental function of this chip.

	In Coco 1's and most Coco 2's, the 6847 is not capable of displaying lowercase. Instead, lower case text appears inverted. Later Coco 2's replaced the 6847 with a 6847T1 that can display proper lower case text.		In Coco 1's and most Coco 2's, the 6847 is not capable of displaying lowercase. Instead, lower case text appears inverted. Later Coco 2's replaced the 6847 with a 6847T1 that can display proper lower case text.

	==See Also==		==See Also==
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	*Wikipedia article on the [http://en.wikipedia.org/wiki/Motorola_6847 Motorola 6847]		*Wikipedia article on the [http://en.wikipedia.org/wiki/Motorola_6847 Motorola 6847]
	*Datasheet http://instruct1.cit.cornell.edu/courses/ee476/ideas/mc6847.pdf		*Datasheet http://instruct1.cit.cornell.edu/courses/ee476/ideas/mc6847.pdf

			[[Category:Hardware]]

Mmaydaniuk at 16:17, 28 September 2014

2014-09-28T16:17:15Z

← Older revision		Revision as of 12:17, 28 September 2014
Line 6:		Line 6:

	In Coco 1's and most Coco 2's, the 6847 is not capable of displaying lowercase. Instead, lower case text appears inverted. Later Coco 2's replaced the 6847 with a 6847T1 that can display proper lower case text.		In Coco 1's and most Coco 2's, the 6847 is not capable of displaying lowercase. Instead, lower case text appears inverted. Later Coco 2's replaced the 6847 with a 6847T1 that can display proper lower case text.

			==See Also==

			*Wikipedia article on the [http://en.wikipedia.org/wiki/Motorola_6847 Motorola 6847]
			*Datasheet http://instruct1.cit.cornell.edu/courses/ee476/ideas/mc6847.pdf

Mmaydaniuk: Created page with "The MC6847 is a video display generator chip that is designed for the 6800 family of microprocessors. It reads data from memory (via the SAM chip) and displays the conten..."

2014-09-28T06:43:21Z

Created page with "The MC6847 is a video display generator chip that is designed for the 6800 family of microprocessors. It reads data from memory (via the SAM chip) and displays the conten..."

New page

The MC6847 is a video display generator chip that is designed for the 6800 family of microprocessors. It reads data from memory (via the [[SAM]] chip) and displays the contents on screen. The 6847 is used on Coco 1 and 2's only; this function was replaced by the custom [[GIME]] chip in Coco 3 models.

The chip provides a 32x16 alphanumeric display, or graphic displays up to 256x192 pixels in resolution. Additionally, a variety of "semigraphics" modes are provided.

On the Coco, the familiar dark-green on light-green text is generated as a fundamental function of this chip.

In Coco 1's and most Coco 2's, the 6847 is not capable of displaying lowercase. Instead, lower case text appears inverted. Later Coco 2's replaced the 6847 with a 6847T1 that can display proper lower case text.