MCP2140A-I/SO Microchip Technology, MCP2140A-I/SO Datasheet - Page 14

• Manufacturer Part Number: MCP2140A-I/SO
• Description: IC IRDA CONTROLLR DTE/DCE 18SOIC
• Manufacturer: Microchip Technology

Specifications of MCP2140A-I/SO

• Package / Case: 18-SOIC (7.5mm Width)
• Controller Type: IRDA Standard Protocol Stack Controller
• Interface: UART
• Voltage - Supply: 3 V ~ 5.5 V
• Current - Supply: 2.2mA
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Product: Controller Area Network (CAN)
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Ic Function: Standard Protocol Stack Controller
• Brief Features: Includes UART-to-IrDA Standard Encoder/decoder Functionality, Infrared Supported
• Supply Voltage Range: 2V To 5.5V
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: MCP2140DM-TMPSNS - BOARD DEMO FOR MCP2140
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

MCP2140A
2.7
The MCP2140A supports these required IrDA standard
protocols:
• Physical Signaling Layer (PHY)
• Link Access Protocol (IrLAP)
• Link Management Protocol/Information Access
The MCP2140A also supports some of the optional
protocols for IrDA standard data. The optional
protocols implemented by the MCP2140A are:
• Tiny TP
• IrCOMM
Figure 2-8
those components implemented by the MCP2140A.
FIGURE 2-8:
FIGURE 2-9:
DS22050A-page 14
Service (IrLMP/IAS)
Note 1: The MCP2140A implements the 9-wire
(9600 -115200 b/s)
LM-IAS
IrTran-P
Asynchronous
Serial IR
Parallel
IrLPT
Supported by
the MCP2140A
2:
3:
IrDA DATA PROTOCOLS
SUPPORTED BY MCP2140A
IR Link Management - Mux (IrLMP)
shows the IrDA data protocol stack and
IR Link Access Protocol (IrLAP)
“cooked” service class serial replicator.
The MCP2140A is fixed at 9600 baud
An optical transceiver is required.
Supported by MCP2140A
(2, 3)
IrObex IrLan
Uncooked Services
Tiny Transport Protocol (Tiny TP)
IrDA DATA - PROTOCOL
STACKS
IRCOMM SERVICE CLASSES
Synchronous
(1.152 Mb/s)
Serial IR
IrComm
Optional IrDA data
protocols not
supported by
the MCP2140A
3-wire Raw
3-wire Raw
Synchronous
Serial
(1)
(4 Mb/s)
4 PPM
IrMC
IrCOMM Services
Centronics
IEEE 1284
2.7.1
IrCOMM provides the method to support serial and par-
allel port emulation. This is useful for legacy COM
applications, such as printers and modem devices.
The IrCOMM standard is a syntax that allows the Pri-
mary device to consider the Secondary device a serial
device. IrCOMM allows for emulation of serial or paral-
lel (printer) connections of various capabilities. The
MCP2140A supports the 9-wire “cooked” service class
of IrCOMM. Other service classes supported by
IrCOMM are shown in
The IrDA protocol for printer support is not included in
the IrCOMM 9-wire “cooked” service class.
Parallel
IRCOMM
Cooked Services
Figure
© 2007 Microchip Technology Inc.
2-9.
3-wire Cooked
9-wire Cooked
Serial