Part Number: AR9344
Function: Feature-Rich IEEE 802.11n 2×2 2.4/5 GHz Premium SoC
This post explains for the System-on-a-Chip (SoC).
The Atheros AR9344 is a highly integrated and feature-rich IEEE 802.11n 2×2 2.4/5 GHz System on-a-Chip (SoC) for advanced WLAN platforms.
It includes a MIPS 74Kc processor, PCI Express 1.1 Root Complex and Endpoint interfaces, five port IEEE 802.3 Fast Ethernet Switch with MAC/PHY, one MII/RMII/RGMII interface, one USB 2.0 MAC/PHY, and external memory interface for serial Flash, SDRAM, DDR1 or DDR2, I2S/SPDIF-Out audio interface, SLIC VOIP/PCM interface, two UARTs, and GPIOs that can be used for LED controls or other general purpose interface configurations.
Block Diagram :
1. 74Kc MIPS processor with 64 KB I-Cache and 32 KB D-Cache, operating at up to 533 MHz
2. External 16- or 32-bit DDR1, DDR2 operating at up to 200 MHz (400 M transfers/sec), or 16-
bit SDRAM memory interface operating at up to 200 MHz
3. NAND and SPI NOR Flash memory support
4. 10/100 Ethernet Switch with five IEEE 802.3 Ethernet LAN ports
5. MII/RMII/RGMII interface