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MCP2140-IP датащи(PDF) 20 Page - Microchip Technology

номер детали MCP2140-IP
подробное описание детали  IrDA짰 Standard Protocol Stack Controller With Fixed 9600 Baud Communication Rate
PDF  58 Pages
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производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP2140-IP датащи(HTML) 20 Page - Microchip Technology

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MCP2140
DS21790A-page 20
Preliminary
 2003 Microchip Technology Inc.
FIGURE 2-13:
HIGH LEVEL MCP2140 CONNECTION SEQUENCE
Normal Disconnect Mode (NDM)
Send XID Commands
(timeslots n, n+1, ...)
No Response
XID Response in timeslot y,
Finish sending XIDs
(max timeslots - y frames)
Broadcast ID
No Response to these XIDs
claiming this timeslot, (MCP214X
No Response to Broadcast ID
Primary Device
MCP2140
Discovery
Normal Response Mode (NRM)
Send SNRM Command
(w/ parameters and
connection address)
Open channel for IAS Queries
Send IAS Queries
Open channel for data
Send Data or Status
Shutdown link
UA response with parameters
using connect address
Confirm channel open for IAS
Provide IAS responses
Confirm channel open for data
Send Data or Status
Confirm shutdown
(back to NDM state)
(approximately 70 ms
between XID commands)
Send Data or Status
Send Data or Status
(MCP2140 DSR pin driven low)
(Secondary Device)
always claims timeslot 0)
No IR Activity
(for 10 seconds)
PHACT pin driven Low
PHACT pin driven High
No IR Activity
(for 10 seconds)
PHACT pin driven Low



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