SM8521 Datasheet PDF - Sharp Electronics

DESCRIPTION
The SM8521 is a CMOS 8-bit single-chip microcomputer containing SM85CPU core and the required peripheral functions for dot matrix LCD display system. SM85CPU is an 8-bit High performance CPU with various addressing modes and High-efficiency instruction sets. SM85CPU is featured by allocating general registers on RAM to reduce overhead when calling subroutines.
The peripheral functions and memory of SM8521 contain ROM, RAM, MMU, LCD controller, DMA, sound generator, timer, serial interface (UART) and PIO.