N900 Hardware Subsystems
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|[[N900 Hardware Charge Meter|Battery status]] || BQ27200 (Texas Instruments) || [http://focus.ti.com/lit/ds/symlink/bq27200.pdf] || | |[[N900 Hardware Charge Meter|Battery status]] || BQ27200 (Texas Instruments) || [http://focus.ti.com/lit/ds/symlink/bq27200.pdf] || | ||
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|[[N900 Hardware Bluetooth|Bluetooth]] || BCM2048 [http://www.broadcom.com/products/Bluetooth/Bluetooth-RF-Silicon-and-Software-Solutions/BCM2048] (Broadcom) || || | |[[N900 Hardware Bluetooth|Bluetooth]] || BCM2048 [http://www.broadcom.com/products/Bluetooth/Bluetooth-RF-Silicon-and-Software-Solutions/BCM2048] (Broadcom) || || | ||
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|[[N900 Hardware FM Radio Transmitter|FM Radio Transmitter]] || Si4713 (Silicon Labs) || [http://www.datasheetdir.com/SI4713+Rf-Transmitters] || | |[[N900 Hardware FM Radio Transmitter|FM Radio Transmitter]] || Si4713 (Silicon Labs) || [http://www.datasheetdir.com/SI4713+Rf-Transmitters] || | ||
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|[[N900 Headphone Amplifier|Headphone Amplifier]] || TPA6130a2 (Texas Instruments) || || | |[[N900 Headphone Amplifier|Headphone Amplifier]] || TPA6130a2 (Texas Instruments) || || | ||
Revision as of 13:43, 10 June 2010
There are many interacting hardware subsystems in the N900.
These can be split roughly into several areas.
Contents |
Audio
Software
Most of the audio on the N900 is handled by gstreamer and PulseAudio. See the API documentation on sound
Main Speakers
Earpiece
Headset
Composite out
Bluetooth audio
Video
Display
Built in LCD
Composite out
Front camera (VGA)
Main article: N900 Hardware VGA Camera
Rear camera (5MP)
Main article: N900 Hardware Camera Sensor
Rear camera LED flash
Main article: N900 Hardware Flash Torch
Rear camera warning light
Rear camera shutter
USB
Main article: N900 Hardware USB
User interaction
Touchscreen
Accelerometer
Main article: N900 Hardware Accelerometer
Switches
Lock Switch
Headset Switch
Jack Switch
Camera Button
Power Button
Volume control
Rear cover presence switch
Camera cover
Keyboard
Keyboard Slide
Proximity sensor
Ambient Light Meter
Main article: N900 Hardware Light Meter
Power management
Main article: N900 Hardware Power management
Battery
Charge meter
Battery Charger
Main article: N900 Hardware Battery Charger
Gaia
CPU
Phone
Main article: N900 Hardware Phone
GPS
Main article: N900 Hardware GPS
2G/3G phone module
SIM
Local Network
Bluetooth
Main article: N900 Hardware Bluetooth
Wifi
Main article: N900 Hardware Wifi
USB Networking
Computing
CPU
Main article: N900 Hardware CPU
Many functional blocks of the CPU
Chipset
Main article: N900 Hardware Chipset
Memory
Flash Memory
Internal 32GB eMMC
Internal 'OneNand' 256MB
External microSD card
RAM
Other hardware (needs merging into heirarchy above)
(Click on device for wiki page with more information)
| Device | Model (Manufacturer) | Description | Driver |
|---|---|---|---|
| Flash Torch | ADP1653 (Analog Devices) | Dual LED flash controller | adp1653 module over I2C bus |
| Autofocus | AD5820 (link is 5821) (Analog Devices) | Autofocus coil driver | ad5820 module over I2C bus |
| LCD Panel | ACX565AKM (Sony) | ||
| LED Controller | LP5523 | ||
| GPU | SGX 530 (Imagination Technologies) | ||
| Touch Screen Controller | tsc 2005 | ||
| CPU | OMAP3430 [1] (Texas Instruments) | ||
| Power management | TWL4030 (Texas Instruments) | ||
| Battery status | BQ27200 (Texas Instruments) | [2] | |
| Bluetooth | BCM2048 [3] (Broadcom) | ||
| FM Radio Transmitter | Si4713 (Silicon Labs) | [4] | |
| Headphone Amplifier | TPA6130a2 (Texas Instruments) | ||
| Digital Audio Data Serial Interface | TLV320AIC3x | ||
| Main Camera | ET8EK8 (Toshiba) | ||
| Front Camera | VS6555 (ST Microelectronics) | ||
| USB | Micro USB (data and charging) | socket may depend on Build Date |
For those wanting to hack on the hardware drivers, the Maemo Kernel source code can be downloaded here:
http://repository.maemo.org/pool/fremantle/free/k/kernel/