MCP2150 Microchip Technology, Inc., MCP2150 Datasheet - Page 11

• Manufacturer Part Number: MCP2150
• Description: The MCP2150 Provides Irda Protocol Handling Plus Bit Encoding/decoding Functionality For Data Terminal Equipment (DTE) Applications in One Low Pincount Device
• Manufacturer: Microchip Technology, Inc.

The IrDA standard specifies the following protocols:
• Physical Signaling Layer (PHY)
• Link Access Protocol (IrLAP)
• Link Management Protocol/Information Access
The IrDA data lists optional protocols. They are:
• Tiny TP
• IrTran-P
• IrOBEX
• IrLAN
• IrCOMM
• IrMC
• IrDA Lite
Figure 2-6
which components are implemented by the MCP2150.
FIGURE 2-6:
2002 Microchip Technology Inc.
Service (IrLMP/IAS)
Note 1: The MCP2155 implements the 9-wire
(9600 -115200 b/s)
LM-IAS
IrTran-P
Supported by
the MCP2150
Asynchronous
Serial IR
2: An optical transceiver is required.
IR Link Management - Mux (IrLMP)
IR Link Access Protocol (IrLAP)
“cooked" service class serial replicator.
shows the IrDA data protocol stack and
(2)
IrObex IrLan
Tiny Transport Protocol (Tiny TP)
IRDA DATA - PROTOCOL
STACKS
Synchronous
(1.152 Mb/s)
Serial IR
Optional IrDA data
protocols not
supported by
the MCP2150
IrComm
Synchronous
(1)
(4 Mb/s)
4 PPM
IrMC
Preliminary
2.9.1
The MCP2150 supports these required IrDA standard
protocols:
• Physical Signaling Layer (PHY)
• Link Access Protocol (IrLAP)
• Link Management Protocol/Information Access
The MCP2150 also supports some of the optional pro-
tocols for IrDA data. The optional protocols that the
MCP2150 implements are:
• Tiny TP
• IrCOMM
2.9.1.1
The MCP2150 provides the following Physical Signal
Layer specification support:
• Bidirectional communication
• Data Packets are protected by a CRC
• Data Communication Rate
The following Physical Layer Specification is depen-
dant on the optical transceiver logic used in the
application. The specification states:
• Communication Range, which sets the end user
Service (IrLMP/IAS)
- 16-bit CRC for speeds up to 115.2 kbaud
- 9600 baud minimum data rate
expectation for discovery, recognition and perfor-
mance.
- Continuous operation from contact to at least
- A low power specification reduces the objec-
1 meter (typically 2 meters can be reached)
tive for operation from contact to at least
20 cm (low power and low power) or 30 cm
(low power and standard power).
IrDA DATA PROTOCOLS
SUPPORTED BY MCP2150
Physical Signal Layer (PHY)
MCP2150
DS21655B-page 11