The Realtek RTL8181 is a highly integrated System-on-a-Chip with a high-performance 32-bit RISC microcontroller, two Ethernet MACs and a WLAN 802.11b controller embedded onto a single chip. RTL8181P BGA version has a PCI Bridge which supports one external PCI/MiniPCI device.
The embedded Lexra LX5280 32-bit RISC CPU runs at up to 200MHz and features separate 8KB instruction and data caches.
- RTL8181 description
- RTL8181 DataSheet
- Linux on Realtek RTL8181
- RealAP - Linux mini-distribution for RTL8181 based devices
Devices are based on the RTL8181:
- Known RTL8181-based consumer devices
- Edimax PS-1205UWg print server
- Edimax EW-7206APb
- Edimax EW-7207APb
- Edimax BR-6104WB
- Minitar MNWAPB 902.11b AccessPoint
- Minitar Hacking
- Minitar firmware sourcecode: sdk-1.4, sdk-1.6
Most of the RTL8181-based devices comes with a simply bootloader and Linux as firmware. See a Minitar sourcecode and RTL8181-linux project. Seems, RTL8181 shares some code with ADM5120. Both they use CSYS header format and some applicatinos (i.e. setup), but RTL8181 firmware is Big-Endian.
RTL8181 supports JTAG and MIPS EJTAG 2.0:
- ManufID: 6
- PartNumber: 5280
Don't confuse the RTL8181 with the RTL8180. It's just plain WLAN chip, that also happens to be the one embedded on the RTL8181.