mc9s08ac16 Freescale Semiconductor, Inc, mc9s08ac16 Datasheet - Page 247

• Manufacturer Part Number: mc9s08ac16
• Description: Hcs08 Microcontrollers 8-bit Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

NOTES:
1. If general call is enabled, a check must be done to determine whether the received address was a general call address (0x00). If the received address was a
2. When 10-bit addressing is used to address a slave, the slave sees an interrupt following the first byte of the extended address. User software must ensure that for
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general call address, then the general call must be handled by user software.
this interrupt, the contents of IICD are ignored and not treated as a valid data transfer
Dummy Read
Switch to
from IICD
Rx Mode
Y
Transmitted
(Master Rx)
Byte to IICD
Addr Cycle
Write Next
Last Byte
RXAK=0
End of
?
?
?
Y
N
N
Stop Signal
TX
Generate
(MST = 0)
Y
N
Tx/Rx
Set TXACK =1
?
Figure 13-12. Typical IIC Interrupt Routine
Y
Byte to Be Read
Byte to Be Read
MC9S08AC16 Series Data Sheet, Rev. 0
Read Data
from IICD
and Store
2nd Last
RX
Last
?
?
N
N
Stop Signal
Generate
(MST = 0)
PRELIMINARY
Y
Y
RTI
Master
Mode
Clear
IICIF
?
Write Data
(Read)
Set TX
to IICD
Mode
N
N
Y
Dummy Read
Clear ARBL
from IICD
IAAS=1
Set RX
Chapter 13 Inter-Integrated Circuit (S08IICV2)
SRW=1
Mode
Y
?
?
N
Address Transfer
(Write)
See Note 1
Tx Next
Byte
Y
Y
Y
Dummy Read
Arbitration
ACK from
from IICD
Receiver
Switch to
IAAS=1
Rx Mode
TX/RX
Lost
?
?
?
?
N
N
N
Data Transfer
TX
See Note 2
Read Data
from IICD
and Store
RX
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