Atheros AR5523


 * The AR5523 is a USB to Wi-Fi single chip, typically used in Wi-Fi dongles.

Properties

 * Manufacturer: Atheros
 * Part name: AR5523
 * Type: chip
 * SOC Architecture: RISC - See MIPS 4Kp.
 * Processor Identification: 0001830a
 * (Processor ID: 0x83; Rev: 0x0a)


 * SOC clock: up to 40 MHz
 * SOC RAM: 256 KByte


 * Operating temperature range: 0 to 95 C°
 * Standard 0.18 μm CMOS technology
 * 10 mm x 10 mm, 68 LPCC package
 * With the AR5112/AR2112 Complete all-CMOS solution for 802.11a (5.15–5.85 GHz) and 802.11b/g (2.312–2.472 and 2.484 GHz) frequency band operation.

Pins

 * 9 - SPI MISO
 * 10 - SPI_MOSI
 * 11 - SPI CS
 * 13 - SPI CLK


 * 6 - JTAG TRST_L - test reset
 * 8 - JTAG TCK - test clock
 * 31 - JTAG EJTAG_SEL - test data output
 * 66 - JTAG TDI - test data input
 * 67 - JTAG TDO - test data output
 * 68 - JTAG TMS - test mode select


 * 36 - system reset


 * 30 - UART Rx
 * 32 - UART Tx (baudrate 9600)

boot log
AR5523 USB Bootloader - Version : 1.6, Jul 21 2004 Available Memory : 196316 bytes Downloading image @ 0x80010200 size - 153416 bytes Download complete, executing image @ 0x80010200 Overide : 0 en : 0 Memory used: 31248 Free: 54300 [Buffer size Tx: 21060 Rx: 19470] Target started

JTAG
impcode: 0x40004000 EJTAG: Version 2.6 Detected EJTAG main: features: noDMA MIPS32 EJTAG v2.6: features: R4k