MCP2140-I/SSRVB Microchip Technology, MCP2140-I/SSRVB Datasheet - Page 52
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MCP2140-I/SSRVB
Manufacturer Part Number
MCP2140-I/SSRVB
Description
9600 BAUD FIXED SPEED IRDA PROTOCOL HANDLER & BIT ENCODER/DECODER, -40C to +85C, 20-SSOP 208mil, TUBE
Manufacturer
Microchip Technology
Datasheet
1.MCP2140-ISSRVB.pdf
(58 pages)
- Current page: 52 of 58
- Download datasheet (547Kb)
MCP2140
FIGURE C-1:
DS21790A-page 52
Normal Disconnect Mode (NDM)
Discovery
Normal Response Mode (NRM)
Open channel for IAS Queries
(approximately 70ms
(max timeslots - y frames)
between XID commands)
Primary Device
HIGH LEVEL IRCOMM CONNECTION SEQUENCE
Broadcast ID
Finish sending XIDs
Send SNRM Command
(w/ parameters and
connection address)
Send XID Commands
(timeslots n, n+1, ...)
Open channel for data
Send Data or Status
Send Data or Status
Send IAS Queries
Shutdown link
Preliminary
Secondary Device
Confirm channel open for data
(MCP2140 DSR pin driven low)
Send Data or Status
Provide IAS responses
Send Data or Status
No Response to these XIDs
No Response to Broadcast ID
Confirm channel open for IAS
Confirm shutdown
(back to NDM state)
No Response
XID Response in timeslot y,
claiming this timeslot, (MCP2140
always claims timeslot 0)
UA response with parameters
using connect address
(MCP2140)
2003 Microchip Technology Inc.
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