Hardware info A80G9

Thanks to scholbert for his work and post on  XDA

A80G9 chipset information:

Processor

• Ti OMAP4430/60 (547-pin CBS BGA package) ARM Cortex A9 dual-core at 1/1.5 GHz with DSP
• POWERVR SGX540 Graphic accelerator: 3D OpenGL ES 2.0

Memory

• 512MB/1024MB LPDDR SDRAM (216-pin PoP BGA package) soldered on top of OMAP4430/60
• 8/16GB NAND (52-pin VLGA package) with eMMC bridge chip (PS7000) connected on mmc2 interface

Interfaces

• USB OTG 2.0 (OMAP4430/60 internal interface, MicroUSB connector)
• USB host interface (TWL6030 host interface, TYP A connector)
• Micro SD slot (OMAP4430/60 internal mmc1 interface, SDHC compatible)

Display subsystem

• ChiMei? 8" TFT-Display EJ080NA-04B (24Bit-LVDS interface)
• Ti SN75LVDS83B LVDS transmitter (56-pin BGA package)

Touchscreen subsystem

• Capacitiv touchscreen unit (Cypress controller TMA340, I2C interface)

HDMI subsystem

• OMAP4430/60 internal 24-Bit HDMI transmitter
• HDMI output (19-pin Mini HDMI connector)

Communication

• Ti WL1271 WiFi (802.11 b/g/n)
• Ti WL1271 Bluetooth 2.1 EDR

GPS chipset

• Ti NL5550 AGPS connected to uart0

Audio chipset

• Ti TWL6040 multichannel audio codec

Miscellaneous

• Built-in speaker
• Built-in Microphone
• Aptina MT9M114 1/6" 720p HD camera (1.26M)

Sensors

• Freescale MMA8453Q G-sensor
• AsahiKasei AK8975 compass-sensor

Power source

• Ti TWL6030 power management chip
• Ti TPS62361 core voltage regulator
• Internal: Lithium Polymer battery
• External: 5V/1.5A Power adapter/charger

UART connection:

Pin assignment:

• TP49 -> GND
• TP50 -> VIO1.8
• TP51 -> UART1_RX
• TP52 -> UART1_TX

Connected to a UART2USB converter with 1.8V logic level shifter it all get's clear with a baudrate of 1000000, 8N1.

Following captured with bootmode changed to peripheral mode.

loader (c) Archos 2010
OMAP4430 Rev. ES2.3

verify_stage2 - disabled

signature check ok
rawfs driver already in use
Cannot mount mmcblk0p1 of type rawfs
  AvBoot Version 5.5.3
Developer edition found, disconnect
bat overtemp
stop charging
exit low batt state voltage: 3969mV
size of params: 32768
magic: 6fc59ae8, ret: 0, size: 32768

verify_kernel - disabled

signature check ok

Additional info:

• The GPS chipset is also connected to this UART, that's why i (scholbert) got confused a little bit while doing measurements with an oscilloscope.
• The GPS chipset get's initialized at a later point when Android is up.
• The CPU uses a hexadecimal protokoll at this point, that's why i could not get something useful out of it.