GENERAL DESCRIPTION
The TMPR4925XB, to be referred as TX4925 MIPS RISC micro-controller is a highly integrated ASSP solution based on Toshiba’s TX49/H2 processor core, a 64-bit MIPS I,II,III ISA Instruction Set Architecture (ISA) compatible with additional instructions. The TX4925 is a highly integrated device with integrated peripherals such as SDRAM memory controller, NAND Flash memory controller, PCI controller, AC-Link controller, PIO, SIO, SPI, CHI, PCMCIA I/F and Timer. This class of product is targeted for applications that require a high performance and cost-effective solution such as networking, digital consumer and Internet appliance.

FEATURES
• TX49/H2 core with an integrated IEEE 754-compliant FPU for single- and double-precision operations
• 4-channel SDRAM Controller ( 32bit/80MHz ) and support SyncFlash® memory
• NAND Flash memory Controller
• 6-channel External Bus Controller
• 32-bit PCI Controller (33 MHz)
• 4-channel Direct Memory Access (DMA) Controller
• 2-channel Serial I/O Port
• Parallel I/O Port (up to 32-bit)
• AC-Link Controller ( AC97 Interface )
• PCMCIA Interface (2-slot)
• SPI (Serial Peripheral Interface)
• CHI (high-speed serial Concentration Highway Interface)
• Interrupt Controller
• 3-channel Timer/Counter and 44-bit up-counter RTC
• Low power dissipation
   The TX4925 operates with the 1.5V core and the 3.3V I/O, while supporting a low-power (Halt) mode.
• CPU maximum operating frequency: 200 MHz
• IEEE1149.1 (JTAG) support: Debug Support Unit (Enhanced JTAG)
• 256-pin PBGA package