AVB SoCs from Marvell supports IEEE 802.1's new AVB standards

Marvell has announced AVB enabled system-on-chip solutions that combine switching, central processing unit and end audio node innovation for its LinkStreet family of processors. The Marvell 88E7221, 88E7251, and 88E7251F support IEEE 802.1's new AVB standards and IEEE 1588v2 Precision Time Protocol standard, which enables synchronization of nodes across an Ethernet network to less than one microsecond.

The 88E7221

The 88E7221, 88E7251 and 88E7251F operate up to 400MHz during consuming less than one watt of power. All three chips feature ARM CPUs with integrated Fast Ethernet switches, USB and SDIO interfaces, and two AVB time-aware TDM/I2S ports that enable synchronized audio playback using the latest AVB standards. The innovation is ideal for wireless routers, VoIP (Voice over Internet Protocol) adaptors, 3G/4G gateways and wired or wireless-networked speakers.

"Marvell remains committed to providing connected-lifestyle solutions that are as explosive in performance as they are light-footed in power consumption," said Paul Valentine, vice president of marketing for the Cloud Services and Infrastructure Business Unit of Marvell Semiconductor, Inc. "To the extent that today's consumers can easily discern an exceptional multimedia experience from a passable one, Marvell offers the industry its first real chance to deliver outstanding AVB innovation in a fully integrated package. The 88E7221, 88E7251 and 88E7251F are central players in Marvell's larger cloud access ecosystem and help our clients significantly expand revenue and overall end user satisfaction."

Product details include: 400 MHz CPU core with 16 KB I and 16 KB D four-way set associative L1 caches High bandwidth, dual-port DDR2/DDR3 memory interface Integrated four-port or seven-port AVB-enabled Fast Ethernet switch USB 2.0 port with integrated PHY SD/SDIO interface running up to 50Mhz Two AVB-enabled TDM audio interfaces supporting up to eight channels per port with sample rates up to 192kHz SPI port with multiple chip selects 16550 compatible UART interface Bootable from SPI, MII, PHY, UART TWSI port GPIO pins Internal real-time clock Interrupt controller Timers Integrated reset controller and power monitor Low power dissipation - <1W 14 x 20 mm 128-pin QFP or 20x20 mm 176-Pin QFP