■ DESCRIPTION

The MB86830 series is a SPARClite *1 series of RISC architecture processors, providing high performance for a variety of embedded applications. Conforming to the SPARC *2 architecture, the MB86830 series is upward code compatible with the conventional products in the SPARClite family. When running at 100 MHz, the MB86830 series provides performance of 121 VAX-MIPS.

■ FEATURES

? IU (integer unit)

Maximum operating frequency : 120 MHz

SPARC architecture V8E conforming

With 32-bits general register :136 / register window : 8

? Instruction cash

The entry lock function is supported

? Data cache

No cash controlling function supported

The entry lock function is supported

? BIU (bus interface unit)

Purifetchi baffa :1

Write buffer :4

The burst mode is supported

Programmable chip selection function :6

Programmable weight state control :6

For 8/16/32-bits bus

Automatic insertion function of idling cycle after ROM region is accessed

For burst mode ROM

? With internal clock multiplication circuit

? Sleep mode (low power consumption mode) supported

? With DRAM controller (except on the MB86836)

? With interrupt request controller (IRC)

? On-chip general-purpose 16-bit timer (MB86836 only):1 channel (equivalent to the MB86942)

? Support for the JTAG test port (MB86836 only)