peb20525 Infineon Technologies Corporation, peb20525 Datasheet - Page 6
peb20525
Manufacturer Part Number
peb20525
Description
2 Channel Serial Optimized Communication Controller For Hdlc/ppp
Manufacturer
Infineon Technologies Corporation
Datasheet
1.PEB20525.pdf
(252 pages)
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Table of Contents
3.2.13.1
3.2.13.2
3.2.13.3
3.2.14
3.2.14.1
3.2.14.2
3.2.15
3.3
3.4
3.5
3.6
3.6.1
3.6.2
4
4.1
4.1.0.1
4.1.0.2
4.1.0.3
4.1.0.4
4.1.1
4.1.2
4.1.3
4.1.4
4.1.5
4.1.6
4.1.7
4.1.8
4.2
4.2.1
4.2.2
4.2.3
4.3
4.4
4.4.1
4.4.2
4.4.3
5
5.1
5.2
5.2.1
5.2.2
Data Sheet
Microprocessor Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
External DMA Controller Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Interrupt Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
General Purpose Port Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Detailed Protocol Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
HDLC/SDLC Protocol Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Point-to-Point Protocol (PPP) Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Extended Transparent Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Procedural Support (Layer-2 Functions) . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Register Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Register Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Detailed Register Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Modem Control Signals (RTS, CTS, CD) . . . . . . . . . . . . . . . . . . . . . . . 77
Local Loop Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
GPP Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
GPP Interrupt Indication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
HDLC Receive Data Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Receive Address Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
HDLC Transmit Data Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Shared Flags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
One Bit Insertion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Preamble Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
CRC Generation and Checking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Receive Length Check Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Bit Synchronous PPP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Octet Synchronous PPP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Data Transparency in PPP Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Full-Duplex LAPB/LAPD Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Half-Duplex SDLC-NRM Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Signaling System #7 (SS7) Operation . . . . . . . . . . . . . . . . . . . . . . . . . 103
Global Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Channel Specific SCC Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
NRZ and NRZI Encoding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
FM0 and FM1 Encoding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Manchester Encoding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
RTS/CTS Handshaking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Carrier Detect (CD) Receiver Control . . . . . . . . . . . . . . . . . . . . . . . . 78
Automode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Address Mode 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Address Mode 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Address Mode 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
6
PEB 20525
PEF 20525
2000-09-14
Page
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