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Номер в каталоге
Компоненты Описание
COM20051 Просмотр технического описания (PDF) - SMSC -> Microchip
Номер в каталоге
Компоненты Описание
производитель
COM20051
Integrated Microcontroller and Network Interface with Watchdog Timer and A/D Converter Interface
SMSC -> Microchip
COM20051 Datasheet PDF : 92 Pages
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HARDWARE OR
SOFTWARE
RESET
INITIATE NETWORK
RECONFIGURATION
SEND NACK
N
SEND ACK FRAME
AND SET RI
Y
NO
ERRORS?
Y & NO
TOKEN
N
FRAME
ADDRESSED TO
RECEIVE FREE
BUFFER
THIS NODE?
ENQUIRY
Y & TOKEN
N
RECEIVE
Y
COMMAND
ISSUED?
SEND ACK FRAME
RECEIVE DATA
RECEIVE TOKEN
SET TMA BIT
Y & BROADCAST
Y
TRANSMIT
Y
COMMAND
ISSUED?
N
PASS TOKEN
TO NEXT
HIGHER NODE
ISSUE FREE
BUFFER
ENQUIRY
ACK
Y
RECEIVED?
N
TRANSMIT
DATA AND
SET TA
ACK
N
RECEIVED?
FIGURE 3 – ARCNET PROTOCOL FLOW
12
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