The HDLC Connectivity Platform  integrates the R8051XC 8-bit microcontroller with the HDLC Protocol Controller.

The main purpose of the HDLC Connectivity Platform is to ease the building of an 8051-based HDLC microcontroller and to offer a ready-to-use reference design for development of both a complete HDLC protocol, and derivative-based solutions.

The HDLC Connectivity Platform features an HDLC serial interface. The HDLC portion of the solution provides needed serialization and de-serialization. It also supports automatic response generation for window size equal to 1.

The HDLC Connectivity Platform retains features of the R8051XC configurable 8-bit microcontroller. It provides interrupts, interfaces for serial communication, timer system with compare-capture-reload resources, I/O ports, a power management unit, a multiplication-division unit, DMA controller, watchdog timer, and a real time clock. The extensive set of peripherals included can be easily modified to meet the requirements of a specific application.

R8051XC 8-bit μcontroller

• Fast single clock per cycle CPU
• Flexible interfaces to program and data memories
• Extensive set of optional and configurable peripherals
• On-chip Debug Support unit (optional)
• External memory interface
• Multiplication-Division Unit
• Special Function Registers interface
• Interrupt Controller
• Power Management Unit
• DMA Controller
• 16 Bit Timers/Counters
• SPI Master/Slave interface
• One or two I2C™ Master/Slave interfaces

HDLC Protocol Controller

• Two independent HDLC channels
• LAPB/LAPD controlling machine
• Serial Peripheral Interfaces
• Receive Length Check
• Three modes of receive operation
• Receive and transmit blocks
• Separate FIFOs

r8051xc-hdlc.rar