UPD30121 Datasheet, PDF (1/76 Pages) NEC – VR4121TM 64-/32-BIT MICROPROCESSOR

DATA SHEET
MOS INTEGRATED CIRCUIT
µPD30121
VR4121^TM
64-/32-BIT MICROPROCESSOR
DESCRIPTION
The µPD30121 (VR4121) is one of NEC’s VR Series^TM RISC (Reduced Instruction Set Computer) microprocessors
and is a high-performance 64-/32-bit microprocessor employing the MIPS^TM RISC architecture.
The VR4121 uses the high-performance, super power-saving VR4120^TM as the CPU core, and has many peripheral
functions such as a DMA controller, software modem interface, serial interface, keyboard interface, IrDA interface,
touch panel interface, real-time clock, A/D converter, and D/A converter. Configured with these functions, the
VR4121 is suitable for high-speed battery-driven portable information systems. The external memory bus width can
be selected from 32 bits and 16 bits, realizing high-speed data transfer.
Detailed function descriptions are provided in the following user’s manual. Be sure to read it before
designing.
• VR4121 User’s Manual (U13569E)
FEATURES
• Employs 64-bit MIPS architecture
• Conforms to MIPS III instruction set (deleting FPU,
LL, LLD, SC, and SCD instructions)
• Optimized 6-stage pipeline
• Supports MIPS16 instruction set
• Supports high-speed product-sum operation
instructions
• Supports four types of operating modes, enabling
more effective power-consumption management
• Internal maximum operating frequency: 131/168 MHz
• On-chip clock generator
• Address space physical: 32 bits
virtual: 40 bits
Integrates 32 double entry TLBs
• High-capacity instruction/data separated cache
memories
Instruction: 16 Kbytes
Data:
8 Kbytes
• Memory controller (ROM, EDO-type DRAM,
synchronous DRAM (SDRAM), synchronous ROM
(SROM), and flash memory supported)
• Keyboard interface and touch panel interface
• 4-channel DMA controller
• Serial interface (NS16550 compatible)
• IrDA interface for infrared communication
• Software modem interface
• A/D and D/A converters to support digital voice I/O
• Supports ISA bus subset
• Power supply voltage: VDD2 = 2.5 V (internal), VDD3 =
3.3 V (external) (131 MHz model)
• Package: 224-pin fine-pitch FBGA
APPLICATIONS
• Battery-driven portable information systems
• Embedded controllers, etc.
ORDERING INFORMATION
Part Number
µPD30121F1-131-GA1
µPD30121F1-168-GA1
Package
224-pin plastic FBGA (16 × 16)
224-pin plastic FBGA (16 × 16)
Internal Maximum Operating Frequency
131 MHz
168 MHz
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for
availability and additional information.
Document No. U14691EJ1V0DS00 (1st edition)
Date Published June 2000 N CP(K)
©
Printed in Japan
2000