Description
FM8PS54/S56
The FM8PS54/S56 series is a family of low-cost, high speed, high noise immunity, EPROM/ROM-based 8-bit CMOS microcontrollers.It employs a RISC architecture with only 42 instructions.All instructions are single cycle except for program branches which take two cycles.The easy to use and easy to remember instruction set reduces development time significantly.The FM8PS54/S56 series consists of Power-on Reset (POR), Brown-out Reset (BOR), Power-up Reset Timer (PWRT), Oscillator Star
Features
- ‧ Only 42 single word instructions ‧ All instructions are single cycle except for program branches which are two-cycle ‧ 13-bit wide instructions ‧ All ROM/EPROM area GOTO instruction ‧ All ROM/EPROM area subroutine CALL instruction ‧ 8-bit wide data path ‧ 5-level deep hardware stack ‧ Operating speed: DC-20 MHz clock input DC-100 ns instruction cycle Device FM8PS54/S54E FM8PS56/S56E Pins # 18 18 I/O # 16 16 EPROM/ROM (Byte) 512 1K RAM (Byte) 49 49
‧ Direct, indirect addressing modes for data.