Roku 2 XS Internals

List of the chips inside:

• BCM 59002 From Broadcom: Mobile Power Management Unit
• SMC LAN 9512: Hi Speed USB 2.0 Hub and Ethernet controller
• AKM 4430 ET: 3.3volt 2 bit Stereo Audio digital audio converter
• BCM 4336 (inside the metal shield): Wireless LAN controller/transceiver
• BCM 20702 (inside the metal shield): Bluetooth controller
• TI 2051B:  Power distribution switch
• Samsung K4P2G324EC: LPDDR2 RAM 2-Gigabit (512 MByte)
• Hynix HY27UF082G2B NAND Flash (2Gbit - 256MB)

The CPU inside the SoC chip (BCM-4336), according to Broadcom website, is based on ARM Cortex-M3 architecture.  The chip integrates 802.11 a/b/g/n Wifi transceiver.

Another interesting site, but for Roku 2 XS: http://www.techrepublic.com/photos/cracking-open-the-roku-2-xs/6274959?seq=20&tag=thumbnail-view-selector;get-photo-roto