Filter
Top Products
KS152JB Universal Communications Controller
Technical Specifications
Kawasaki LSI USA, Inc. Page 32 of 120 Ver. 0.9 KS152JB2
3.0 GLOBAL SERIAL CHANNEL
3.1 Introduction
The Global Serial Channel (GSC) is a multi-protocol, high performance serial interface targeted
for data rates up to 2 MBPS with on-chip clock recovery, and 2.4 MBPS using the external clock
options. in applications using the serial channel, the GSC implements the Data Link Layer and
Physical Link Layer as described in the ISO reference model for open systems interconnection.
The GSC is designed to meet the requirements of a wide range of serial communications applica-
tions and is optimized to implement Carrier-Sense Multi-Access with Collision Detection
(CSMA/CD) and Synchronous Data Link Control (SDLC) protocols. The GSC architecture is
also designed to provide flexibility in defining non-standard protocols. This provides the ability to
retrofit new products into older serial technologies, as well as the development of proprietary
interconnect schemes for serial backplane environments.
The versatility of the GSC is demonstrated by the wide range of choices available to the user. The
various modes of operation are summarized in Table 3.1. In subsequent sections, each available
choice of operation will be explained in detail.
In using Table 3.1, the parameters listed vertically (on the left hand side) represent an option that
is selected (X). The parameters listed horizontally (along the top of the table) are all the parame-
ters that could theoretically be selected (Y). The Symbol at the junction of both X and Y deter-
mines the applicability of the option Y.
Note, that not all combinations are backwards compatible. for example, Manchester encoding
requires half duplex, but half duplex does not require Manchester encoding.