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68HC705SB7 Datasheet(PDF) 90 Page - Freescale Semiconductor, Inc

Part # 68HC705SB7
Description  SPECIFICATION (General Release)
PDF  170 Pages
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

68HC705SB7 Datasheet(HTML) 90 Page - Freescale Semiconductor, Inc

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GENERAL RELEASE SPECIFICATION
August 27, 1998
MOTOROLA
SM-BUS
MC68HC05SB7
12-12
REV 2.1
Figure 12-5. Flow-chart of SM-Bus Interrupt Routine
CLEAR SMIF
MASTER MODE
TX/RX
LAST BYTE
TO BE READ
LAST BYTE
TRANSMITTED
TX
RX
RXAK=0
N
WRITE NEXT
BYTE TO SMDR
GENERATE
STOP SIGNAL
Y
N
Y
SET TXAK = 1
N
N
GENERATE
STOP SIGNAL
Y
READ DATA FROM
SMDR AND STORE
CLEAR SMAL
Y
N
SMAAS = 1
SMAAS = 1
SRW= 1
Y
TX/RX
READ SMDR
AND STORE
SET
TX MODE
WRITE
TO SMDR
SET
RX MODE
DUMMY READ
FROM SMDR
ACK FROM
RECEIVER
TX NEXT
BYTE
SWITCH TO
RX MODE
DUMMY READ
FROM SMDR
ARBITRATION
LOST
LAST 2nd BYTE
TO BE READ
RTI
N
Y
TX
RX
N
Y
N
N (WRITE)
Y (READ)
YN



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