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COM20051 Datasheet(PDF) 63 Page - SMSC Corporation

Part # COM20051
Description  Integrated Microcontroller and ARCNET (ANSI 878.1) Interface
PDF  82 Pages
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Manufacturer  SMSC [SMSC Corporation]
Direct Link  http://www.smsc.com
Logo SMSC - SMSC Corporation

COM20051 Datasheet(HTML) 63 Page - SMSC Corporation

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FIGURE 19 – TRANSMIT INTERRUPT SERVICE ROUTINE (continued)
Y
3
BIT 0 OF
TX_PEND
SET?
BIT 4 OF
TX_PEND
SET?
BITS 5&6
SET?
SET OFFSET =
#013H
CALL
SEND_TX_CMD
CLEAR BIT 0 OF
TX_PEND
N
N
Y
Y
BIT 4 OF
TX_PEND
SET?
Y
N
BIT 1 OF
TX_PEND
SET?
Y
N
SAME PROCEDURE AS
FOR BIT 0 BUT WITH
OFFSET = 33H
BIT 2 OF
TX_PEND
SET?
Y
N
SAME PROCEDURE AS
FOR BIT 0 BUT WITH
OFFSET = 1BH
BIT 3 OF
TX_PEND
SET?
Y
N
SAME PROCEDURE AS
FOR BIT 0 BUT WITH
OFFSET = 3BH
EXIT
N
*CCHEN CHECK TO
BE IMPLEMENTED
EXIT
EXIT



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