INTEGRATED CIRCUIT

TOSHIBA RISC PROCESSOR

TMPR4925XB

TENTATIVE

EJC-TMPR4925XB-1

26/Dec/01 Rev 0.1

TOSHIBA CORPORATION

TOSHIBA RISC PROCESSOR

TMPR4925XB

(64-bit RISC MICROPROCESSOR)

1.

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.

2. 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

- The products described in this document are subject to foreign exchange and foreign trade control laws.

- The information contained herein is subject to change without notice.

- TOSHIBA is continually working to improve the quality and the reliability of its products. Nevertheless, semiconductor devices in general

can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer, when

utilizing TOSHIBA products, to observe standards of safety, and to avoid situations in which a malfunction or failure of a TOSHIBA product

could cause loss of human life, bodily injury or damage to property.

In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as set forth in the most

recent products specifications. Also, please keep in mind the precautions and conditions set forth in the TOSHIBA Semiconductor Reliability

Handbook.

- The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by

TOSHIBA for any infringements of patents or other rights of the third parties which may result from its use. No license is granted by

implication or otherwise under any patent or patent rights of TOSHIBA or others.