FEATURES
● On-chip hardware interface with V.90 data/fax/voice modem subsystem implemented DESCRIPTION
The ES4428/ES4427 Web/DVD Internet set-top box chipset seamlessly combines both Web browser technology and DVD technology into a highly integrated, low-cost solution for the next generation of Internet set-top boxes for home use. The ES4428, which is based on ESS’s Programmable Multimedia Processor (PMP) device architecture, includes a programmable internal RISC processor core that makes it adaptable for use in embedded systems applications such as set-top boxes. The ES4428 also supports both 8- and 16-bit Flash/Read-Only Memory (ROM) and 8- and 16-bit Synchronous DRAM (SDRAM) memory I/O operations. The ES4428 controls data I/O transactions to and from the ES4427 companion chip through its 8-bit Device Serial Connect (DSC) parallel bus interface. The ES4428 also provides a 16-bit wide hardware interface with V.90-compatible modem subsystems incorporated into the set-top box design. The ES4427 incorporates a multi-standard TV encoder that supports both the NTSC and PAL formats and CCIR-601 nonsquare operations.
ESS
