Difference between revisions of "Hardware/Starlet"
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* NAND access / filesystem | * NAND access / filesystem | ||
* DVD subsystem | * DVD subsystem | ||
| − | * Authentication (RSA, SHA1) and encryption/decryption (AES) | + | * Authentication (RSA, EC, SHA1, HMAC-SHA1) and encryption/decryption (AES, RSA, EC) |
* USB HCD (generic USB interface), Keyboard driver, Ethernet driver | * USB HCD (generic USB interface), Keyboard driver, Ethernet driver | ||
* WiFi | * WiFi | ||
Revision as of 01:13, 31 January 2008
The Hollywood includes an ARM9 core, nicknamed the Starlet. This is a very interesting piece of hardware, as it basically does everything that makes a Wii different from a Gamecube.
Note: this page is incomplete. Please expand it as you see fit!
Hardware
- arm926 core.
- AES and SHA-1 hardware engines
- Boot ROM
- OTP key/hash area
Tasks
The Starlet handles at least these tasks in the Wii
- NAND access / filesystem
- DVD subsystem
- Authentication (RSA, EC, SHA1, HMAC-SHA1) and encryption/decryption (AES, RSA, EC)
- USB HCD (generic USB interface), Keyboard driver, Ethernet driver
- WiFi
- TCP/IP
- SD card
- GPIO (Sensor bar, drive LED, power LED, etc)
- Audio/Video encoder (I2C) bus
Boot
Starlet is the first processor to run code in the Wii.
- Starlet boots from an internal Mask ROM, BOOT0
- BOOT0 decrypts, verifies, and runs the first few blocks of NAND, BOOT1
- BOOT1 locates, loads, decrypts, verifies, and runs BOOT2
- The BOOT2 bootstrap then loads the embedded ELF file.
- BOOT2 starts the IOS.
At some point, Starlet loads code into an EXI buffer and bootstraps Broadway.
Links
More information about the Starlet:
- IOS - the OS that runs on the Starlet and handles calls from the Broadway during game execution and while in the system menu.
- ARM Binaries - the formats used for Starlet executable code
- WAD Files are used for BOOT2 and the IOS