N900 Hardware Chipset - Revision history

amigadave: slightly wikify

2010-06-10T09:34:08Z

slightly wikify

← Older revision		Revision as of 09:34, 10 June 2010
Line 1:		Line 1:
-	The chip known as 'Gaia' in the schematics is the companion chip to the processor.	+	The chip known as 'Gaia' in the [[N900 Hardware Schematic\|schematics]] is the companion chip to the processor.
-	~~=Hardware=~~	+
-	~~The TWL5030B is the companion chip to the CPU. It can be seen in [http://people.openmoko.org/joerg/n900/images/n900_01.jpeg] and has USB PHY, power management and audio codec~~.	+

-	It is also known as the TPS65950.	+	==Hardware==
		+
		+	The TWL5030B is the companion chip to the CPU. It can be seen in [http://people.openmoko.org/joerg/n900/images/n900_01.jpeg] and has USB PHY, power management and audio codec. It is also known as the TPS65950.

	A datasheet for the [http://focus.ti.com/docs/prod/folders/print/tps65950.html TIs TPS65950] is at TIs website.		A datasheet for the [http://focus.ti.com/docs/prod/folders/print/tps65950.html TIs TPS65950] is at TIs website.

		+	The USB PHY is not used and this function is handled by the nxp1707a [http://www.spinics.net/lists/linux-usb/msg25167.html] See [[N900_Hardware_USB\|more information on USB]]

-	~~The USB PHY isn't used and this function is handled by the nxp1707a [http://www.spinics.net/lists/linux-usb/msg25167.html] See [[N900_Hardware_USB\|more information on USB]]~~	+	The TPS65950 contains:
-		+
-		+
-	The TPS65950 contains;	+
	* Power management		* Power management
	** Several regulators - switched mode and LDO.		** Several regulators - switched mode and LDO.
Line 28:		Line 26:
	** This can support switches, keypads, ...		** This can support switches, keypads, ...

-	==Connections==	+	===Connections===
		+
	It is connected to the [[N900 Hardware Bus I2C\|I2C]] bus.		It is connected to the [[N900 Hardware Bus I2C\|I2C]] bus.

	[[Category:N900 Hardware]]		[[Category:N900 Hardware]]

speedevil: /* Hardware */

2010-06-07T23:29:13Z

Hardware

← Older revision		Revision as of 23:29, 7 June 2010
Line 1:		Line 1:
	The chip known as 'Gaia' in the schematics is the companion chip to the processor.		The chip known as 'Gaia' in the schematics is the companion chip to the processor.
	=Hardware=		=Hardware=
-	The TWL5030B~~, see~~ [http://people.openmoko.org/joerg/n900/images/n900_01.jpeg] ~~aka TPS65950)~~ has USB PHY, power management and audio codec.	+	The TWL5030B is the companion chip to the CPU. It can be seen in [http://people.openmoko.org/joerg/n900/images/n900_01.jpeg] and has USB PHY, power management and audio codec.
		+
		+	It is also known as the TPS65950.

	A datasheet for the [http://focus.ti.com/docs/prod/folders/print/tps65950.html TIs TPS65950] is at TIs website.		A datasheet for the [http://focus.ti.com/docs/prod/folders/print/tps65950.html TIs TPS65950] is at TIs website.


-	The USB PHY isn't used and is handled by the nxp1707a [http://www.spinics.net/lists/linux-usb/msg25167.html] See [[N900_Hardware_USB\|more information on USB]]	+	The USB PHY isn't used and this function is handled by the nxp1707a [http://www.spinics.net/lists/linux-usb/msg25167.html] See [[N900_Hardware_USB\|more information on USB]]

-	~~It seems to be documented - not under this part number - at~~

	The TPS65950 contains;		The TPS65950 contains;

speedevil: /* Hardware */

2010-06-07T23:27:17Z

Hardware

← Older revision		Revision as of 23:27, 7 June 2010
Line 1:		Line 1:
	The chip known as 'Gaia' in the schematics is the companion chip to the processor.		The chip known as 'Gaia' in the schematics is the companion chip to the processor.
	=Hardware=		=Hardware=
-	The ~~TWL4030 (to be precise the~~ TWL5030B, see [http://people.openmoko.org/joerg/n900/images/n900_01.jpeg] aka TPS65950) has USB PHY, power ~~managment~~ and audio codec.	+	The TWL5030B, see [http://people.openmoko.org/joerg/n900/images/n900_01.jpeg] aka TPS65950) has USB PHY, power management and audio codec.

-	~~The USB PHY isn't used and is handled by~~ the ~~nxp1707a~~ [http://~~www~~.~~spinics~~.~~net~~/~~lists~~/~~linux-usb~~/~~msg25167~~.html] ~~See [[N900_Hardware_USB\|more information on USB]]~~	+	A datasheet for the [http://focus.ti.com/docs/prod/folders/print/tps65950.html TIs TPS65950] is at TIs website.

-	~~It seems to be documented - not under this part number - at [http://focus.ti.com/docs/prod/folders/print/tps65950.html TIs website]~~

-	~~A quick check indicates~~ the ~~I2C bus addresses match~~ - ~~see 13~~.~~3 in above datasheet.~~	+	The USB PHY isn't used and is handled by the nxp1707a [http://www.spinics.net/lists/linux-usb/msg25167.html] See [[N900_Hardware_USB\|more information on USB]]
-		+
-	~~If this is the correct part, the following description applies:~~	+

		+	It seems to be documented - not under this part number - at

	The TPS65950 contains;		The TPS65950 contains;
Line 19:		Line 17:
	** Several power amplifiers.		** Several power amplifiers.
	** Microphone amplifiers		** Microphone amplifiers
-	* USB ~~tranciever~~	+	* USB transceiver
-	** Highspeed OTG compatible with integrated charge pump, and carkit support, designed for direct connection to the ~~SoC~~.	+	** Highspeed OTG compatible with integrated charge pump, and carkit support, designed for direct connection to the CPU. (not used in N900)
	* an ac/USB charger		* an ac/USB charger
	* LED drivers		* LED drivers
Line 28:		Line 26:
	* GPIO		* GPIO
	** This can support switches, keypads, ...		** This can support switches, keypads, ...
		+
		+	==Connections==
		+	It is connected to the [[N900 Hardware Bus I2C\|I2C]] bus.

	[[Category:N900 Hardware]]		[[Category:N900 Hardware]]

speedevil at 10:45, 4 June 2010

2010-06-04T10:45:56Z

← Older revision		Revision as of 10:45, 4 June 2010
Line 1:		Line 1:
-		+	The chip known as 'Gaia' in the schematics is the companion chip to the processor.
		+	=Hardware=
	The TWL4030 (to be precise the TWL5030B, see [http://people.openmoko.org/joerg/n900/images/n900_01.jpeg] aka TPS65950) has USB PHY, power managment and audio codec.		The TWL4030 (to be precise the TWL5030B, see [http://people.openmoko.org/joerg/n900/images/n900_01.jpeg] aka TPS65950) has USB PHY, power managment and audio codec.

speedevil: New page: The TWL4030 (to be precise the TWL5030B, see [http://people.openmoko.org/joerg/n900/images/n900_01.jpeg] aka TPS65950) has USB PHY, power managment and audio codec. The USB PHY isn't use...

2010-06-04T10:44:54Z

New page: The TWL4030 (to be precise the TWL5030B, see [http://people.openmoko.org/joerg/n900/images/n900_01.jpeg] aka TPS65950) has USB PHY, power managment and audio codec. The USB PHY isn't use...

New page

The TWL4030 (to be precise the TWL5030B, see [http://people.openmoko.org/joerg/n900/images/n900_01.jpeg] aka TPS65950) has USB PHY, power managment and audio codec.

The USB PHY isn't used and is handled by the nxp1707a [http://www.spinics.net/lists/linux-usb/msg25167.html] See [[N900_Hardware_USB|more information on USB]]

It seems to be documented - not under this part number - at [http://focus.ti.com/docs/prod/folders/print/tps65950.html TIs website]

A quick check indicates the I2C bus addresses match - see 13.3 in above datasheet.

If this is the correct part, the following description applies:

The TPS65950 contains;
* Power management
** Several regulators - switched mode and LDO.
* Audio codec
** Five DACs, two ADCs
** Several power amplifiers.
** Microphone amplifiers
* USB tranciever
** Highspeed OTG compatible with integrated charge pump, and carkit support, designed for direct connection to the SoC.
* an ac/USB charger
* LED drivers
* ADC
** ADC can measure both input voltages to device, or voltages connected externally.
* RTC
* GPIO
** This can support switches, keypads, ...

[[Category:N900 Hardware]]