mc68hc912dg128 Freescale Semiconductor, Inc, mc68hc912dg128 Datasheet - Page 295

• Manufacturer Part Number: mc68hc912dg128
• Description: M68hc12 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Inter-IC Bus
Technical Data
295
Dummy Read
From IBDR
Switch To
Rx Mode
Y
Byte To IBDR
Transmitted
(Master Rx)
Addr Cycle
Write Next
Last Byte
RXAK=0
End Of
?
?
?
N
Y
N
Figure 15-4. Flow-Chart of Typical IIC Interrupt Routine
Stop Signal
TX
Generate
Y
N
Freescale Semiconductor, Inc.
Tx/Rx
Set TXAK =1
?
For More Information On This Product,
Y
Byte To Be Read
Byte To Be Read
From IBDR
Read Data
And Store
2nd Last
RX
Last
Go to: www.freescale.com
?
?
N
N
Stop Signal
Generate
Inter-IC Bus
Y
Y
RTI
Master
Mode
Clear
IBIF
?
Write Data
To IBDR
(Read)
Set TX
Mode
N
N
Y
Dummy Read
From IBDR
Clear IBAL
IAAS=1
Set RX
SRW=1
Mode
Y
?
?
N
Address Transfer
(Write)
MC68HC912DG128 — Rev 3.0
Tx Next
Byte
Y
Y
Y
Dummy Read
From IBDR
ACK From
Arbitration
Switch To
Receiver
Rx Mode
IAAS=1
TX/RX
Lost
?
?
?
?
N
N
TX
Data Transfer
N
From IBDR
Read Data
And Store
MOTOROLA
RX