MCP2140A-I/SO View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

MCP2140A-I/SO

IrDA® Standard Protocol Stack Controller With Fixed 9600 Baud Communication Rate

Microchip Technology 

APPENDIX C: NETWORK

LAYERING

REFERENCE MODEL

Figure C-1 shows the ISO Network Layering

Reference Model. The shaded areas are implemented

by the MCP2140A, while the cross-hatched area is

implemented by an infrared transceiver. The unshaded

areas should be implemented by the Host Controller.

FIGURE C-1: ISO REFERENCE LAYER MODEL

OSI REFERENCE LAYERS

Application

Presentation

Session

Transport

Network

Data Link Layer

LLC (Logical Link Control)

Acceptance Filtering

Overload Notification

Recovery Management

MAC (Medium Access Control)

Data Encapsulation/Decapsulation

Frame Coding (stuffing, destuffing)

Medium Access Management

Error Detection

Error Signalling

Acknowledgment

Serialization/Deserialization

Physical Layer

PLS (Physical Signalling)

Bit Encoding/Decoding

Bit Timing

Synchronization

PMA (Physical Medium Attachment)

Driver/Receiver Characteristics

MDI (Medium Dependent Interface)

Connectors

MCP2140A

Has to be implemented in Host

Controller firmware

(such as a PIC® microcontroller

Regions implemented

by the MCP2140A

Regions implemented

by the Optical Transceiver logic

Supervisor

Fault

confinement

(MAC-LME)

Bus Failure

management

(PLS-LME)

© 2007 Microchip Technology Inc.

DS22050A-page 51

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