Quatech MPA-200 Instrukcja Użytkownika Pobierz pdf (Strona 11)

3 SCC GENERAL INFORMATION

The Serial Communications Controller (SCC) is a dual channel, multi-protocol

data communications peripheral. The MPA-200 provides a single channel for

communications, however, to provide full DMA capabilities, both channels of the

SCC can be utilized. The SCC can be software configured to satisfy a wide

variety of serial communications applications. Some of its protocol capabilities

include:

1) Asynchronous Communications

 5, 6, 7, or 8 bits per character

 1, 1-1/2, or 2 stop bits

 Odd, even, or no parity

 Times 1, 16, 32, or 64 clock modes

 Break generation and detection

 Parity, overrun and framing error detection

2) Byte-oriented Synchronous Communications

 Internal/external character synchronization

 1 or 2 sync characters in separate registers

 Automatic Cyclic Redundancy Check (CRC) generation/detection

3) SDLC/HDLC (Bit Synchronous) Communications

 Abort sequence generation and checking

 Automatic zero insertion and deletion

 Automatic flag insertion between messages

 Address field recognition

 I-field residue handling

 CRC generation and detection

 SDLC loop mode with EOP recognition/loop entry and exit

4) NRZ, NRZI, or FM encoding/decoding

5 Quatech Inc., MPA-200/300 Manual

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 43 44

Brak uwag

Quatech MPA-200 Instrukcja Użytkownika Strona 11