PEB20534H-10 SIEMENS [Siemens Semiconductor Group], PEB20534H-10 Datasheet - Page 7
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PEB20534H-10
Manufacturer Part Number
PEB20534H-10
Description
DMA Supported Serial Communication Controller with 4 Channels DSCC4
Manufacturer
SIEMENS [Siemens Semiconductor Group]
Datasheet
1.PEB20534H-10.pdf
(442 pages)
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7.7.1
7.7.2
7.7.3
7.7.4
7.7.5
7.8
7.8.1
7.8.2
7.8.3
7.9
7.9.1
7.9.2
7.10
8
8.1
8.1.1
8.1.1.1
8.1.1.2
8.1.1.3
8.1.1.4
8.1.2
8.1.2.1
8.1.2.2
8.1.2.3
8.1.3
8.1.4
8.1.5
8.1.6
8.1.7
8.1.8
8.1.9
8.1.9.1
8.1.9.2
8.1.9.3
8.1.9.4
8.1.9.5
8.1.9.6
8.1.9.7
8.1.9.8
8.2
8.2.1
8.2.2
Semiconductor Group
Data Encoding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .162
Modem Control Signals (RTS, CTS, CD) . . . . . . . . . . . . . . . . . . . . . . . . .164
Local Loop Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .166
Detailed Protocol Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .167
HDLC/SDLC Protocol Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .169
Asynchronous (ASYNC) Protocol Mode . . . . . . . . . . . . . . . . . . . . . . . . . .191
Serial Bus Access Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .160
Serial Bus Collisions and Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . .160
Serial Bus Access Priority Scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . .161
Serial Bus Configuration Timing Modes . . . . . . . . . . . . . . . . . . . . . . . .161
Functions Of Signal RTS in HDLC Mode . . . . . . . . . . . . . . . . . . . . . . . .162
NRZ and NRZI Encoding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .162
FM0 and FM1 Encoding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .163
Manchester Encoding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .164
RTS/CTS Handshaking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .164
Carrier Detect (CD) Receiver Control . . . . . . . . . . . . . . . . . . . . . . . . . .166
HDLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .169
HDLC/PPP Protocol Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .171
Extended Transparent Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .172
HDLC Receive Data Processing Overview . . . . . . . . . . . . . . . . . . . . . .172
HDLC Transmit Data Processing Overview . . . . . . . . . . . . . . . . . . . . . .174
Procedural Support (Layer-2 Functions) . . . . . . . . . . . . . . . . . . . . . . . .176
Full-Duplex LAPB/LAPD Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . .177
Half-Duplex SDLC-NRM Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . .182
Special Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .185
Character Framing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .191
Data Reception . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .191
Auto Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .170
Non Auto Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .170
Address Mode 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .171
Address Mode 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .171
Bit Synchronous PPP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .171
Octet Synchronous PPP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .172
Aynchronous PPP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .172
Extended Transparent Transmission and Reception . . . . . . . . . . . . .185
Receive Address Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .185
Shared Flags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .185
One Bit Insertion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .186
Preamble Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .186
CRC Generation and Checking . . . . . . . . . . . . . . . . . . . . . . . . . . . . .186
Data Transparency in PPP Mode . . . . . . . . . . . . . . . . . . . . . . . . . . .188
Receive Length Check Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . .190
7
Data Sheet 09.98
PEB 20534
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