Hands-On Embedded Programming with C++17

Intel MCS-48

Intel's response to Texas Instrument's successful TMS 1000 MCU was the MCS-48 series, with the 8048, 8035, and 8748 being the first models released in 1976. The 8048 has 1 KB of ROM and 64 bytes of RAM. It is an 8-bit design with a Harvard architecture (split code/data memory), introducing a native word size of 8 bits and interrupt support (two single-level) and is compatible with 8080/8085 peripherals, making it a highly versatile MCU. The advantage of wider ALU and register word sizes is still perceivable today, where for example a 32 bit addition is sequentially executed on an 8 bit MCU as a series of 8 bit additions with carry.

The MCS-48 features over 96 instructions, most of them a single byte in length, and allows for ...