Conexant CX2388x - Revision history

CityK: add categories; add link to driver page

2012-01-21T20:15:05Z

add categories; add link to driver page

← Older revision		Revision as of 20:15, 21 January 2012
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	A [[PCI interface chipsets\|PCI interface chipset]] family of ICs from [[Conexant]]. The CX2388x (CX23880, CX23881, CX23882, CX23883) family are the direct successors to the [[Conexant Fusion 878A\|Fusion 878A]] chip.		A [[PCI interface chipsets\|PCI interface chipset]] family of ICs from [[Conexant]]. The CX2388x (CX23880, CX23881, CX23882, CX23883) family are the direct successors to the [[Conexant Fusion 878A\|Fusion 878A]] chip.

-	The CX2388x chips are supported under Linux, by the cx88 and associated kernel driver modules, however, there are areas of these chips' feature sets that the drivers currently lack support for or either need improvement upon ~~(see [[Cx88 devices (cx2388x)#Current status\|Cx88 devices current status section]] for more information)~~.	+	The CX2388x chips are supported under Linux, by the [[cx88\|cx88 and associated kernel driver modules]], however, there are areas of these chips' feature sets that the drivers currently lack support for or either need improvement upon.

	{{Note\|Take care not to confuse this IC family with the similarly named [[Conexant CX23885/7/8]] PCIe based family of ICs}}		{{Note\|Take care not to confuse this IC family with the similarly named [[Conexant CX23885/7/8]] PCIe based family of ICs}}
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	** [http://www.conexant.com/servlets/DownloadServlet/PBR-200192-001.pdf?docid=193&revid=1 Spec Sheet. ]		** [http://www.conexant.com/servlets/DownloadServlet/PBR-200192-001.pdf?docid=193&revid=1 Spec Sheet. ]

		+	[[Category:Hardware]]
		+	[[Category:Chipsets]]
	[[Category:Decoder]]		[[Category:Decoder]]

CityK: add note to avoid confusion

2010-04-25T19:21:38Z

add note to avoid confusion

← Older revision		Revision as of 19:21, 25 April 2010
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	The CX2388x chips are supported under Linux, by the cx88 and associated kernel driver modules, however, there are areas of these chips' feature sets that the drivers currently lack support for or either need improvement upon (see [[Cx88 devices (cx2388x)#Current status\|Cx88 devices current status section]] for more information).		The CX2388x chips are supported under Linux, by the cx88 and associated kernel driver modules, however, there are areas of these chips' feature sets that the drivers currently lack support for or either need improvement upon (see [[Cx88 devices (cx2388x)#Current status\|Cx88 devices current status section]] for more information).
		+
		+	{{Note\|Take care not to confuse this IC family with the similarly named [[Conexant CX23885/7/8]] PCIe based family of ICs}}
		+

	==Overview/Features==		==Overview/Features==

CityK: oops! nested categories already set up

2009-09-27T19:04:23Z

oops! nested categories already set up

← Older revision		Revision as of 19:04, 27 September 2009
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	** [http://www.conexant.com/servlets/DownloadServlet/PBR-200192-001.pdf?docid=193&revid=1 Spec Sheet. ]		** [http://www.conexant.com/servlets/DownloadServlet/PBR-200192-001.pdf?docid=193&revid=1 Spec Sheet. ]

-
-	~~[[Category:Hardware]]~~
-	~~[[Category:Chipsets]]~~
	[[Category:Decoder]]		[[Category:Decoder]]

CityK: minor edits

2009-09-27T18:48:36Z

minor edits

← Older revision		Revision as of 18:48, 27 September 2009
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-	A [[PCI interface chipsets\|PCI interface chipset]] family of ICs from [[Conexant]]. The CX2388x are the direct ~~successor~~ to the [[Conexant Fusion 878A\|Fusion 878A]] chip.	+	A [[PCI interface chipsets\|PCI interface chipset]] family of ICs from [[Conexant]]. The CX2388x (CX23880, CX23881, CX23882, CX23883) family are the direct successors to the [[Conexant Fusion 878A\|Fusion 878A]] chip.

-	The CX2388x chips are supported under Linux, by the cx88 and associated kernel driver modules, however, there are areas of ~~the chip~~'s feature ~~set~~ that the drivers currently lack support for or either need improvement upon (see [[Cx88 devices (cx2388x)#Current status\|Cx88 devices current status section]] for more information).	+	The CX2388x chips are supported under Linux, by the cx88 and associated kernel driver modules, however, there are areas of these chips' feature sets that the drivers currently lack support for or either need improvement upon (see [[Cx88 devices (cx2388x)#Current status\|Cx88 devices current status section]] for more information).

	==Overview/Features==		==Overview/Features==

CityK: multiple categories

2009-09-27T18:43:18Z

multiple categories

← Older revision		Revision as of 18:43, 27 September 2009
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	** [http://www.conexant.com/servlets/DownloadServlet/PBR-200192-001.pdf?docid=193&revid=1 Spec Sheet. ]		** [http://www.conexant.com/servlets/DownloadServlet/PBR-200192-001.pdf?docid=193&revid=1 Spec Sheet. ]

		+
		+	[[Category:Hardware]]
		+	[[Category:Chipsets]]
	[[Category:Decoder]]		[[Category:Decoder]]

Alldigital at 11:11, 27 September 2009

2009-09-27T11:11:29Z

← Older revision		Revision as of 11:11, 27 September 2009
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	** [http://www.conexant.com/servlets/DownloadServlet/PBR-200192-001.pdf?docid=193&revid=1 Spec Sheet. ]		** [http://www.conexant.com/servlets/DownloadServlet/PBR-200192-001.pdf?docid=193&revid=1 Spec Sheet. ]

-	~~[[Category:Hardware]]~~
	[[Category:Decoder]]		[[Category:Decoder]]

CityK: minor description

2008-12-07T20:33:18Z

minor description

← Older revision		Revision as of 20:33, 7 December 2008
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	A [[PCI interface chipsets\|PCI interface chipset]] family of ICs from [[Conexant]]. The CX2388x are the direct successor to the [[Conexant Fusion 878A\|Fusion 878A]] chip.		A [[PCI interface chipsets\|PCI interface chipset]] family of ICs from [[Conexant]]. The CX2388x are the direct successor to the [[Conexant Fusion 878A\|Fusion 878A]] chip.

-	The CX2388x chips are supported under Linux, by the cx88 and associated kernel driver modules, however, there are areas of the chip's feature set that the drivers currently lack support for or either need improvement upon (see [[Cx88 devices (cx2388x)#Current status\|current status section]] for more information).	+	The CX2388x chips are supported under Linux, by the cx88 and associated kernel driver modules, however, there are areas of the chip's feature set that the drivers currently lack support for or either need improvement upon (see [[Cx88 devices (cx2388x)#Current status\|Cx88 devices current status section]] for more information).

	==Overview/Features==		==Overview/Features==

CityK: /* Overview/Features */

2008-12-07T20:31:15Z

Overview/Features

← Older revision		Revision as of 20:31, 7 December 2008
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	These chips provide a/v decoder functionality and have dedicated DVB support in a new PCI function, as opposed to the hackish approach employed by its predecessor, the 878A; which provided DVB support via use of the chip's digital audio input lines.		These chips provide a/v decoder functionality and have dedicated DVB support in a new PCI function, as opposed to the hackish approach employed by its predecessor, the 878A; which provided DVB support via use of the chip's digital audio input lines.

-	In fact, the CX2388x chips have 6 (?) PCI functions, but fortunately they all share the same (huge 16MB!) memory mapping. Executing lspci will reveal that the cx2388x has the following ports:	+	In fact, the CX2388x chips have 6 (?) PCI functions, but fortunately they all share the same (huge 16MB!) memory mapping. Executing the command ''lspci'' will reveal in it's output that the cx2388x has the following ports:
	00:09.0 Multimedia video controller: Conexant CX23880/1/2/3 PCI Video and Audio Decoder (rev 05)		00:09.0 Multimedia video controller: Conexant CX23880/1/2/3 PCI Video and Audio Decoder (rev 05)
	00:09.1 Multimedia controller: Conexant CX23880/1/2/3 PCI Video and Audio Decoder [Audio Port] (rev 05)		00:09.1 Multimedia controller: Conexant CX23880/1/2/3 PCI Video and Audio Decoder [Audio Port] (rev 05)

CityK: some reworking

2008-12-07T20:29:19Z

some reworking

← Older revision		Revision as of 20:29, 7 December 2008
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-	~~Big brother to the~~ [[~~Conexant Fusion 878A~~\|~~Fusion 878A~~]] ~~produced by~~ [[Conexant ~~Systems, Inc.~~]]. ~~Has specialised DVB support in a new PCI function, instead of using~~ the ~~digital audio input for it. (Yay!). In fact it has stacks of functions, like 6 or something, but fortunately they all share~~ the ~~same (huge 16MB!) memory mapping. Has the same (identical?) RISC programs as the Bt878 and the same kind of~~ [[~~I²C Protocol~~\|~~I²C bus control~~]] ~~controller~~.	+	A [[PCI interface chipsets\|PCI interface chipset]] family of ICs from [[Conexant]]. The CX2388x are the direct successor to the [[Conexant Fusion 878A\|Fusion 878A]] chip.

-	~~For DVB signal reception handling~~, the ~~cx2388x doesn~~'~~t really offer anything over~~ the ~~older~~ [[~~Conexant Fusion 878A~~\|~~Fusion 878A~~]] ~~chipset~~.	+	The CX2388x chips are supported under Linux, by the cx88 and associated kernel driver modules, however, there are areas of the chip's feature set that the drivers currently lack support for or either need improvement upon (see [[Cx88 devices (cx2388x)#Current status\|current status section]] for more information).

-	Executing lspci will reveal that the cx2388x has the following ports:	+	==Overview/Features==
		+	These chips provide a/v decoder functionality and have dedicated DVB support in a new PCI function, as opposed to the hackish approach employed by its predecessor, the 878A; which provided DVB support via use of the chip's digital audio input lines.
		+
		+	In fact, the CX2388x chips have 6 (?) PCI functions, but fortunately they all share the same (huge 16MB!) memory mapping. Executing lspci will reveal that the cx2388x has the following ports:
	00:09.0 Multimedia video controller: Conexant CX23880/1/2/3 PCI Video and Audio Decoder (rev 05)		00:09.0 Multimedia video controller: Conexant CX23880/1/2/3 PCI Video and Audio Decoder (rev 05)
	00:09.1 Multimedia controller: Conexant CX23880/1/2/3 PCI Video and Audio Decoder [Audio Port] (rev 05)		00:09.1 Multimedia controller: Conexant CX23880/1/2/3 PCI Video and Audio Decoder [Audio Port] (rev 05)
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	00:09.4 Multimedia controller: Conexant CX23880/1/2/3 PCI Video and Audio Decoder [IR Port] (rev 05)		00:09.4 Multimedia controller: Conexant CX23880/1/2/3 PCI Video and Audio Decoder [IR Port] (rev 05)

		+	The chips have the same (identical?) RISC programs as the Bt878 and the same kind of [[I²C Protocol\|I²C bus control]] controller.
		+
		+	==Analog Functions==
	====Analog video inputs====		====Analog video inputs====
	In terms of its analog to digital signal processing capabilities, the cx2388x brings some improvements over the older [[Conexant Fusion 878A\|Fusion 878A]] chipset.		In terms of its analog to digital signal processing capabilities, the cx2388x brings some improvements over the older [[Conexant Fusion 878A\|Fusion 878A]] chipset.

	Like many other contemporary mainstream A/V decoders, the maximum capture window that these chips support is "up to 768 x 576 (square pixel PAL/SECAM)".		Like many other contemporary mainstream A/V decoders, the maximum capture window that these chips support is "up to 768 x 576 (square pixel PAL/SECAM)".
-

	====Analog audio inputs====		====Analog audio inputs====
-	The cx2388x family of ICs are capable of providing demodulation of all major global broadcast audio standards. In other words, they can directly accept S-IF from a TV tuner pll. These signals will in turn be decoded and are output either to the PC's sound card directly via a patch cable (invokes a DAC step), to a digital audio output interface (eg. SPDIF), or to the host via a DMA channel.	+	The cx2388x family of ICs are capable of providing demodulation of all major global '''broadcast audio''' standards. In other words, they can directly accept S-IF from a TV tuner pll. These signals will in turn be decoded and are output either to the PC's sound card directly via a patch cable (invokes a DAC step), to a digital audio output interface (eg. SPDIF), or to the host via a DMA channel.

-	The cx2388x IC's do ~~not~~ process other analog audio sources. They do, however, provide the ability to connect directly, via an i2s input port, to a 3rd party audio ADC.	+	The cx2388x IC's do NOT process other analog audio sources. They do, however, provide the ability to connect directly, via an i2s input port, to a 3rd party audio ADC.

-
-	~~Also see v4l's [http://www.linuxtv.org/v4lwiki/index.php/Cx88_devices_%28cx2388x%29 cx88 page]~~

	== External Links ==		== External Links ==
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	** [http://www.conexant.com/servlets/DownloadServlet/PBR-200192-001.pdf?docid=193&revid=1 Spec Sheet. ]		** [http://www.conexant.com/servlets/DownloadServlet/PBR-200192-001.pdf?docid=193&revid=1 Spec Sheet. ]

-	~~[[Category:Decoder]]~~
	[[Category:Hardware]]		[[Category:Hardware]]
		+	[[Category:Decoder]]

CityK: remove info --

2008-11-26T03:49:41Z

remove info --

← Older revision		Revision as of 03:49, 26 November 2008
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	00:09.2 Multimedia controller: Conexant CX23880/1/2/3 PCI Video and Audio Decoder [MPEG Port] (rev 05)		00:09.2 Multimedia controller: Conexant CX23880/1/2/3 PCI Video and Audio Decoder [MPEG Port] (rev 05)
	00:09.4 Multimedia controller: Conexant CX23880/1/2/3 PCI Video and Audio Decoder [IR Port] (rev 05)		00:09.4 Multimedia controller: Conexant CX23880/1/2/3 PCI Video and Audio Decoder [IR Port] (rev 05)
-
-	~~====Digital TV====~~
-	The CX2388x series cannot decode an HD signal (720 or 1080 lines), the [http://www.conexant.com/servlets/DownloadServlet/PBR-200192-001.pdf?docid=193&revid=1 specifications] say "Capture resolution up to 768 x 576 (square pixel PAL/SECAM)".

	====Analog video inputs====		====Analog video inputs====
	In terms of its analog to digital signal processing capabilities, the cx2388x brings some improvements over the older [[Conexant Fusion 878A\|Fusion 878A]] chipset.		In terms of its analog to digital signal processing capabilities, the cx2388x brings some improvements over the older [[Conexant Fusion 878A\|Fusion 878A]] chipset.

-	Like other A/V decoders, the maximum capture window that these chips support is "up to 768 x 576 (square pixel PAL/SECAM)" ~~i.e. '''not''' full HD 1080i/p signals~~.	+	Like many other contemporary mainstream A/V decoders, the maximum capture window that these chips support is "up to 768 x 576 (square pixel PAL/SECAM)".

-	~~See~~
-	~~[http://www.conexant.com/servlets/DownloadServlet/PBR-200192-001.pdf?docid=193&revid=1 Spec Sheet. ]~~

	====Analog audio inputs====		====Analog audio inputs====
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	== External Links ==		== External Links ==
	* [http://www.conexant.com/products/entry.jsp?id=107 Conexant cx2388x product page]		* [http://www.conexant.com/products/entry.jsp?id=107 Conexant cx2388x product page]
		+	** [http://www.conexant.com/servlets/DownloadServlet/PBR-200192-001.pdf?docid=193&revid=1 Spec Sheet. ]

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