An Embedded Web Server for National Semiconductor’s 16-bit
Microcontroller – The CR16MCS9 CannonBall
What datagrams may come…
TABLE OF CONTENTS
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Abstract:
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3
Introduction:..........................................................................................................................................
3
Discussion:
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3
TCP Backgrounder:
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5
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Basic Data Transfer:
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5
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Reliability:......................................................................................................................................
6
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Flow Control:..................................................................................................................................
6
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Multiplexing:
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Connections:
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Precedence and Security:
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7
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TCP and Window Management
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TCP’s Maximum Segment Size (MSS):
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The Link layer’s Maximum Transmission Unit (MTU):
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Silly Window Syndrome (SWS):
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8
IP Backgrounder:
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IP Addressing:
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9
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The MAC Address:..........................................................................................................................
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IP fragmentation............................................................................................................................
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Particulars of this Implementation
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ü
Memory Requirements
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11
ü
Stack Details
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A.
The Transport Layer – TCP
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1.
The TCP interface, or, “API”....................................................................................................
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2.
The TCP Socket......................................................................................................................
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3.
The TCP Segment.
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B.
The Transport Layer – UDP
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The Network Layer (IP)
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ICMP (Internet Control Message Protocol)
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Data Link Layer (SLIP/PPP)...............................................................................................................
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Figure 16. IP/Data Link Interface.
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The Application Layer (HTTP 1.0)
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Naming Services (WINS/DNS)
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A CR16-based Embedded Web Server Demo.....................................................................................
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III.
This Implementation’s Compliance with the TCP Specification
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IV.
Compliance with the IP Specification.......................................................................................
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Biography – About the Author, Jeff Wright.......................................................................................
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Table of Figures
Figure 1. TCP Header Format...........................................................
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Figure 2. IP Header Format
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Figure 3. Ipv4 Hierarchical Addressing scheme
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Figure 4. Protocol Layer Model
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