mc68hc908ap8a Freescale Semiconductor, Inc, mc68hc908ap8a Datasheet - Page 240
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mc68hc908ap8a
Manufacturer Part Number
mc68hc908ap8a
Description
M68hc08 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC908AP8A.pdf
(316 pages)
- Current page: 240 of 316
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Multi-Master IIC Interface (MMIIC)
14.7.1 Data Sequence
240
(a) Master Transmit Mode
(b) Master Receive Mode
(c) Slave Transmit Mode
(d) Slave Receive Mode
Figure 14-12. Data Transfer Sequences for Master/Slave Transmit/Receive Modes
Shaded data packets indicate transmissions by the MCU
MMTXBE=0
MMRW=0
MMAST=1
Data1 → MMDTR
MMRXBF=0
MMAST=1
MMTXBE=0
MMTXBE=1
MMRXBF=0
MMTXBE=0
MMRXBF=0
MMRW=1
(dummy data → MMDTR)
START
START
START
START
Address
Address
Address
Address
MC68HC908AP A-Family Data Sheet, Rev. 3
MMRXIF=1
MMRXBF=1
MMATCH=1
MMSRW=0
MMTXBE=1
MMTXIF=1
Data2 → MMDTR
MMRXIF=1
MMRXBF=1
MMATCH=1
MMSRW=1
Data1 → MMDTR
0
1
1
0
ACK
ACK
ACK
ACK
TX Data1
RX Data1
TX Data1
RX Data1
MMTXBE=1
MMTXIF=1
Data2 → MMDTR
MMTXBE=1
MMTXIF=1
Data3 → MMDTR
MMRXIF=1
MMRXBF=1
Data1 → MMDRR
MMRXIF=1
MMRXBF=1
Data1 → MMDRR
ACK
ACK
ACK
ACK
DataN+2 → MMDTR
DataN+2 → MMDTR
RX DataN
RX DataN
TX DataN
TX DataN
DataN → MMDRR
DataN → MMDRR
MMTXBE=1
MMRXBF=1
MMRXBF=1
MMTXBE=1
MMRXIF=1
MMRXIF=1
MMTXIF=1
MMTXIF=1
Freescale Semiconductor
ACK
NAK
NAK
ACK
MMNAKIF=1
MMAST=0
MMTXBE=0
MMNAKIF=1
MMAST=0
MMNAKIF=1
MMTXBE=0
STOP
STOP
STOP
STOP
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