DR8051 8-Bit RISC Microcontroller

from Digital Core Design

Features

• Software-compatible with industry standard 8051
• RISC architecture
• 6.7x faster than the original implementation
• 4-clock periods multiplication
• 5-clock periods division
• Up to 16 Mbytes of external standard data memory
• Up to 256 bytes of internal dual port data memory
• Up to 64 Kbytes of program memory
• User-programmable RAMWE and RAMRD pulses in 1 to 8 clock periods
• De-multiplexed address/data bus, allowing easy connection to memory
• Data transfer over 16x faster than the original implementation
• Two 16-bit timer/counters
• Full-duplex serial port
• Support for external system functional reviews
• Fully synthesizable, static synchronous design with no internal tri-states
• 1-GHz virtual clock frequency faster than the original implementation (over 150 MHz in a typical 0.25µ technological process)

DR8051 8-Bit RISC Microcontroller Block Diagram

Figure 1 shows the block diagram for the DR8051 8-Bit RISC microcontroller megafunction.

Figure 1. DR8051 8-Bit RISC Microcontroller Block Diagram

Description

The DR8051 soft core function is binary-compatible with the industry standard 8051 8-bit microcontroller and can achieve performance of up to 55 million instructions per second in today's integrated circuit technologies. The DR8051 function has a RISC architecture that is 6.7x faster than the original implementation.

Device Utilization Example

Table 1 lists the typical device utilization results for the megafunction.

Note:

1. EABs = Embedded array blocks

Contact Information

For additional information, contact DCD at:

Digital Core Design
Wroclawska 94
41-902 Bytom
Poland
Tel. +48 32 282 82 66
Fax +48 32 282 74 37
E-mail: info@dcd.com.pl
http://www.dcd.com.pl