Overview

The VN1632 Core is 32-bit microprocessor core developed by ICDREC based on the RISC (Reduced Instruction Set Computer) architecture. The main characteristics are the architecture of Harvard 32-bit RISC but with a five-stage pipeline, in which five successive instructions are loaded simultaneously in five different pipeline stages. As a result, five instructions are executed at the same time. This effectively improves the performance of the microprocessor. It has on-chip cache memory, in which instruction cache and data cache are separate.

The 32-bit microprocessor VN1632 was designed and developed based on the experiences accumulated by the success of other 8-bit microcontrollers. The challenge of this new task was not only the complexity, the larger scale of the 32-bit microprocessor, but to ensure the design originality, many new and hard issues have been studied and implemented: cache memory, prefetch buffer, write buffer, store buffer, bus interface, co-processor, etc

The design has been synthesized, simulated and fabricated using 0.13um IBM process. The result shows that this architecture works correctly with desired performance

Specification

• CPU’s features
  
  • Harvard RISC 5-stage pipeline architecture
  • Separate instruction cache and data cache
  • Built-in cache memory
  • 65 instructions
  • 32-bit instruction width
  • Multiply in only 2 clock cycles
  • Debug support with breakpoint
  • Synchronous design
• Bus and Peripherals 
  • Advance High Performance Bus (AHB)
  • Advance Peripheral Bus (APB)
  • Memory controller: SDR-SDRAM, Mobile SDR-SDRAM, DDR-SDRAM, or Mobile DDR-SDRAM (LPDDR), SRAMs and FLASHes
  • General Purpose I/O (GPIO)
  • I2C, I2S
  • TIMER 1 and TIMER 2
  • UART1, UART2



Block Diagram

Technical Characteristics

• Process: IBM 0.13um, 8 metal layers
• Core voltage: 1.2V
• PAD voltage: 2.5V
• Core size: 3560 x 3559 um2.
• Chip size: 24 x 24 x 1.4 mm3, TQFP.
• Number of pins: 176
• Maximum system clock speed: 20 MHz
• Power consumption: 30.6 mW

Bản in Gửi Email cho bạn bè