Hello
New toy – a Philips PCB80C552-5-16WP based single board computer.
The board is designed to have 64KBytes of EEPROM from 0x0000 to 0xFFFF, 32KB of SRAM from 0x0000 to 0x7FFF and 32KB of peripherals space from 0x8000 to 0xFFFF
On the same board I’ve placed a SPI RTC, EEPROM and 4.096 voltage reference for the on-chip ADC.