peb20525 Infineon Technologies Corporation, peb20525 Datasheet - Page 43

• Manufacturer Part Number: peb20525
• Description: 2 Channel Serial Optimized Communication Controller For Hdlc/ppp
• Manufacturer: Infineon Technologies Corporation

3.2
3.2.1
The SCC is a multi-protocol communication controller. The core logic provides different
protocol modes which are listed below:
• HDLC Modes
• Point-to-Point Protocol (PPP) Modes
• Extended Transparent Mode
A detailed description of these protocol modes is given in
Page
3.2.2
Each SCC provides its own transmit and receive FIFOs to handle internal arbitration and
microcontroller latencies.
3.2.2.1
The SCC transmit FIFO is divided into two parts of 32 bytes each (’transmit pools’). The
interface between the two parts provides synchronization between the microprocessor
accesses and the protocol logic working with the serial transmit clock.
Data Sheet
– HDLC Transparent Operation (Address Mode 0)
– HDLC Address Recognition (Address Mode 1, Address Mode 2 8/16-bit)
– Full-Duplex LAPB/LAPD Operation (Automode 8/16-bit)
– Half-Duplex SDLC-NRM Operation (Automode 8-bit)
– Signaling System #7 (SS7) Operation
– Bit Synchronous PPP
– Octet Synchronous PPP
83.
Serial Communication Controller (SCC)
Protocol Modes Overview
SCC FIFOs
SCC Transmit FIFO
43
Chapter
Functional Overview
4, starting on
PEB 20525
PEF 20525
2000-09-14