15. List the features of 8051 microcontroller? The features are • Single supply +5 volt operation using HMOS technology. • 4096 bytes program memory on chip (not on 8031) • 128 data register banks • Four register mode, bit timer counter. • Extensive Boolean processing capabilities. • 64 KB external RAM size • 32 bidirectional individually addressable IO lines. • 8 bit CPU optimized for control applications. 16. Explain the operating mode 0 of 8051 serial ports In this mode serial enters & exits through RXD, TXD outputs the shift clock 8 bits are transmitted/received: 8 data bits (LSB first. The baud rate is fixed at 1/12 the oscillator frequency.
