Description

The SAB 82525NV2.1 is a High-Level Serial Communication Controller compatible to the SAB 82520 HSCC with extended features and functionality (HSCX). It is designed to implement high-speed communication links using HDLC protocols and to reduce the hardware and software overhead needed for serial synchronous communications.

Specifications and features

• Product Category: IC Chips
• Serial Interface
• Two independent full-duplex HDLC channels (SAB 82526: one channel)
• On chip clock generation or external clock source
• On chip DPLL for clock recovery for each channel
• Two independent baudrate generators (SAB 82526: one baudrate generator)
• Independent time-slot assignment for each channel with programmable time-slot length (1-256 bit)
• Different modes of data encoding
• Modem control lines (RTS, CTS, CD)
• Support of bus configuration by collision resolution
• Programmable bit inversion
• Transparent receive/transmit of data bytes without HDLC framing
• Continuous transmission of 1 to 32 bytes possible
• Data rate up to 4 Mbit/s

Application Scenarios

The SAB 82525NV2.1 can be used in various applications such as high-speed communication links, serial synchronous communications, and bus configurations with collision resolution.

Comparison

• High-level serial communication controller
• Extended features and functionality with HSCX
• Supports two independent full-duplex HDLC channels
• Flexible baudrate generator options
• Programmable time-slot assignment for each channel
• Supports various data encoding modes
• Modem control lines for RTS, CTS, CD
• Programmable bit inversion
• Continuous transmission of data bytes
• Fast data rate up to 4 Mbit/s

• Only one HDLC channel in SAB 82526 model
• Requires external clock source for on-chip clock generation