January 2019
Intermediate to advanced
458 pages
10h 35m
English
Recent chips from Cypress CY7C68013A (USB peripheral controller) to Ti CC2541 (a Bluetooth SoC) feature commodity 8051 cores, demonstrating that the Intel MCS-51 family design remains popular to this day. There's a plethora of derived MCUs by other manufacturers as well, even though Intel stopped producing this series of MCUs in March of 2007. First introduced in the 1980s, it's an 8-bit MCU like the 8048, but expands heavily on its feature set.
The functional block diagram as depicted in the Intel 80xxAH datasheet is shown as follows:

It's very similar to the Atmel (now microchip) AT89S51 which is still in production today. ...