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PEF20534 Datasheet(PDF) 7 Page - Infineon Technologies AG

Part # PEF20534
Description  DMA Supported Serial Communication Controller with 4 Channels
Download  439 Pages
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Manufacturer  INFINEON [Infineon Technologies AG]
Direct Link  http://www.infineon.com
Logo INFINEON - Infineon Technologies AG

PEF20534 Datasheet(HTML) 7 Page - Infineon Technologies AG

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PEB 20534
PEF 20534
Table of Contents
Page
Data Sheet
7
2000-05-30
7.7.2
Serial Bus Collisions and Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
7.7.3
Serial Bus Access Priority Scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
7.7.4
Serial Bus Configuration Timing Modes . . . . . . . . . . . . . . . . . . . . . . . 161
7.7.5
Functions Of Signal RTS in Serial Bus Configuration . . . . . . . . . . . . . 162
7.8
Data Encoding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
7.8.1
NRZ and NRZI Encoding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
7.8.2
FM0 and FM1 Encoding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
7.8.3
Manchester Encoding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
7.9
Modem Control Signals (RTS, CTS, CD) . . . . . . . . . . . . . . . . . . . . . . . . 164
7.9.1
RTS/CTS Handshaking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
7.9.2
Carrier Detect (CD) Receiver Control . . . . . . . . . . . . . . . . . . . . . . . . . 166
7.10
Local Loop Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
8
Detailed Protocol Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
8.1
HDLC/SDLC Protocol Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
8.1.1
HDLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
8.1.1.1
Auto Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
8.1.1.2
Non Auto Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
8.1.1.3
Address Mode 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
8.1.1.4
Address Mode 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
8.1.2
HDLC/PPP Protocol Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
8.1.2.1
Bit Synchronous PPP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
8.1.2.2
Octet Synchronous PPP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
8.1.2.3
Aynchronous PPP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
8.1.3
Extended Transparent Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
8.1.4
HDLC Receive Data Processing Overview . . . . . . . . . . . . . . . . . . . . . 172
8.1.5
HDLC Transmit Data Processing Overview . . . . . . . . . . . . . . . . . . . . . 174
8.1.6
Procedural Support (Layer-2 Functions) . . . . . . . . . . . . . . . . . . . . . . . 176
8.1.7
Full-Duplex LAPB/LAPD Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
8.1.8
Half-Duplex SDLC-NRM Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
8.1.9
Special Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
8.1.9.1
Extended Transparent Transmission and Reception . . . . . . . . . . . . 185
8.1.9.2
Receive Address Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
8.1.9.3
Shared Flags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
8.1.9.4
One Bit Insertion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
8.1.9.5
Preamble Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
8.1.9.6
CRC Generation and Checking . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
8.1.9.7
Data Transparency in PPP Mode . . . . . . . . . . . . . . . . . . . . . . . . . . 188
8.1.9.8
Receive Length Check Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
8.2
Asynchronous (ASYNC) Protocol Mode . . . . . . . . . . . . . . . . . . . . . . . . . 191
8.2.1
Character Framing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
8.2.2
Data Reception . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
8.2.2.1
Asynchronous Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191


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