mcf5282 Freescale Semiconductor, Inc, mcf5282 Datasheet - Page 469
mcf5282
Manufacturer Part Number
mcf5282
Description
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MCF5282.pdf
(766 pages)
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Freescale Semiconductor
Dummy Read
Switch to
Rx Mode
from I2DR
Y
ADDR Cycle
Byte to I2DR
(Master RX)
Transmitted
Write Next
Last Byte
RXAK= 0
End of
?
?
?
N
Y
N
STOP Signal
Generate
TX
MCF5282 and MCF5216 ColdFire Microcontroller User’s Manual, Rev. 3
Figure 24-14. Flow-Chart of Typical I
Y
N
Set TXAK =1
TX/Rx
?
Y
Read Data
from I2DR
Byte to be
Byte to be
And Store
2nd Last
Read
Read?
RX
Last
N
N
?
STOP Signal
Generate
Y
Y
RTE
Master
Clear
Mode?
IIF
(Read)
Write Data
2
to I2DR
Set TX
Mode
C Interrupt Routine
Address
Cycle
N
N
Y
Dummy Read
from I2DR
Clear IAL
IAAS=1
Set RX
SRW=1
Mode
Y
?
?
N
(WRITE)
Tx Next
Byte
Y
Y
Y
Dummy Read
Arbitration
from I2DR
Switch to
ACK from
Receiver
Rx Mode
IAAS=1
Tx/Rx
Lost?
?
?
?
N
TX
N
N
Read Data
from I2DR
Data
Cycle
and Store
RX
I
2
C Interface
24-15
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