(China (Mainland))
Product Summary
The BCM4318EKFBG is a VoIP processor. It offers a high level of system integration, performance, and features for wireless IP phone handsets. The chip architecture was designed specifically with low-power and small footprint in mind for wireless handheld applications. The BCM4318EKFBG is a highly integrated mobile VoIP processor based on an ARM9 CPU architecture and integrated analog voice band codec. The device integrates all phone peripherals such as keyscan and USB 2.0, as well as an external memory interface supporting NOR or NAND Flash and SRAM or SDRAM. Also included are interface functions and drivers to enable auxiliary components, such as microphone and speaker, to connect directly to the BCM4318EKFBG-P11 device. The BCM4318EKFBG, with the BCM4318E, offers a highly optimized solution for WLAN IP phones.
Features
BCM4318EKFBG features: (1)ARM926EJ core at 156 MHz with 8 KB I/D caches; (2)Integrated analog voice band codec with direct microphone and high output speaker interface; (3)Interface to external stereo DAC through I2S for MP3 music; (4)DMA controller with four simultaneous channels; (5)Key scan controller; (6)4-bit SDIO interface to BCM4318E Wi-Fi; (7)Bluetooth interface via UART and audio PCM; (8)SDIO, IrDA, 4-bit SD/MMC interfaces; (9)USB OTG at 12 Mbps; (10)2-Megapixel camera interface; (11)QCIF video encode and decode; (12)2D graphics, MPEG-4 SAD, and DCT accelerators; (13)Serial or parallel LCD interface for 256 K colors at 1.8V; (14)NOR or NAND Flash support; (15)SRAM or SDRAM external memory support; (16)Direct SIM connections at both 3V and 1.8V (no LDO required); (17)Integrated 64-tone MIDI polyringe.
Diagrams
