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The MC6860P is a microprocessor peripheral chip manufactured by Motorola (MOTO). Below are its specifications, descriptions, and features:

Specifications:

• Manufacturer: Motorola (MOTO)
• Part Number: MC6860P
• Function: Asynchronous Communications Interface Adapter (ACIA)
• Technology: NMOS
• Package: 24-pin DIP (Dual In-line Package)
• Operating Voltage: +5V DC
• Data Format: Serial-to-parallel and parallel-to-serial conversion
• Baud Rate: Programmable (supports common rates up to 9600 baud)
• Interface: Compatible with Motorola 6800-series microprocessors

Descriptions:

The MC6860P is an Asynchronous Communications Interface Adapter (ACIA) designed to facilitate serial data communication between a microprocessor and peripheral devices. It converts parallel data from the CPU into serial data for transmission and vice versa for reception. It includes built-in baud rate generation, parity checking, and framing control.

Features:

• Full-duplex operation (simultaneous transmit and receive)
• Programmable data format (5–8 bits per character, odd/even/no parity, 1 or 2 stop bits)
• Interrupt-driven operation for efficient CPU utilization
• Status flags for error detection (parity, framing, overrun)
• Baud rate generator (internal or external clock support)
• TTL-compatible inputs and outputs

This chip was commonly used in early computer and terminal systems for serial communication tasks.