Part Number: AR9344
Function: IEEE 802.11n 2×2 2.4/5 GHz Systemon-a-Chip
Package: 409-pin BGA Type
Manufacturer: Atheros Communications
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.
The AR9344 PCIE Root Complex interface can be used to connect to another Atheros single-chip MAC/BB/radio for dual concurrent WLAN applications. The AR9344 supports booting from either NOR or NAND flash. If NOR flash is used as boot codestore, an additional NAND flash device can still be connected, for end-user multimedia storage and other applications.
AR9344 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