mc9s08qg4 Freescale Semiconductor, Inc, mc9s08qg4 Datasheet - Page 173

• Manufacturer Part Number: mc9s08qg4
• Description: Hcs08 Microcontrollers Microcontroller Family
• Manufacturer: Freescale Semiconductor, Inc

Freescale Semiconductor
Dummy Read
Switch to
from IICD
Rx Mode
Y
(Master Rx)
Byte to IICD
Transmitted
Addr Cycle
Last Byte
Write Next
RXAK=0
End of
?
?
?
Y
N
N
Stop Signal
TX
(MST = 0)
Generate
Y
N
Tx/Rx
Set TXACK =1
?
MC9S08QG8 and MC9S08QG4 Data Sheet, Rev. 4
Figure 11-11. Typical IIC Interrupt Routine
Y
Byte to Be Read
Byte to Be Read
Read Data
from IICD
and Store
2nd Last
RX
Last
?
?
N
N
Stop Signal
Generate
(MST = 0)
Y
Y
RTI
Master
Mode
Clear
IICIF
?
Write Data
(Read)
to IICD
Set TX
Mode
N
N
Y
Dummy Read
Clear ARBL
from IICD
IAAS=1
Chapter 11 Inter-Integrated Circuit (S08IICV1)
Set RX
SRW=1
Mode
Y
?
?
N
Address Transfer
(Write)
Tx Next
Byte
Y
Y
Y
Dummy Read
ACK from
from IICD
Arbitration
Receiver
Switch to
IAAS=1
Rx Mode
TX/RX
Lost
?
?
?
?
N
N
N
TX
Data Transfer
Read Data
from IICD
and Store
RX
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