MBL80286-8 Datasheet | Fujitsu Semiconductor Limited

FUJITSU MBL 80286-8 MBL 80286-6 NMOS HIGH PERFORMANCE 16-BIT MICROPROCESSOR WITH MEMORY MANAGEMENT AND PROTECTION January 1986 Edition 1.0 The Fujitsu MBL 80286 is an advanced, high-performance 16-bit microprocessor with speql~!Jyo Ptimized capabilities for multiple user and multi-tasking systems. The MBL 80286 has built-in memory protection C~t~~J~upports operating system and task isolation as well as program and data privacy within tasks. An 8 MHz MBL 8d2a_~c~rovides up to six times greater throughout than the standard 5 MHz MBL 8086. The MBL 80286 includes memory-'rna??S~ment capabilities that map up to 230 (one gigabyte) of virtual address space per task into 224 bytes (16 megabyt E$Ji~t J)hysical memory. The MBL 80286 is upward patible with MBL 8086 and 88 software. Using MBL 8086 real address mode, the MBL 80286 is object code patible with existing MBl 8086,88 software. In protected virtual address mode, the MBL 80286 is source code patible with MBl8086, 88 software and may require upgrading to use virtual addresses supported by the MBL 80286's integrated memory management and protection mechanism. Both modes operate at full MBl 80286 performance and execute a superset of the MBL 8086 and 88's instructions. The MBL 80286 provides special operations to support the efficient implementation and execution of operating systems. For example, one instruction can end execution of one task, save its state, switch to a new task, load its state, and start execution of the new task. The MBl 80286 also supports virtual memory systems by providing a segmentnot-present exception and restartable instructions. The MBl 80286 is housed in a 68-pad ceramic l CC (leadless Chip Carrier: JEDEC Type A) or a 68-pin ceramic PGA (Pin Grid Array) package. - High Performance Processor (Up to six times MBl 8086) - large Address Space: - 16 Megabytes Physical - 1 Gigabyte Virtual per Task - Integrated Memory...