mc68hc908bd48 Freescale Semiconductor, Inc, mc68hc908bd48 Datasheet - Page 181

• Manufacturer Part Number: mc68hc908bd48
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

14.5 Registers
MC68HC908BD48
Freescale Semiconductor
Addr.
$004C
$004D
$004A
$004B
$004E
$004F
Master Control Register
Data Transmit Register
Data Receive Register
Register Name
Address Register
Control Register
Multi-Master IIC
Multi-Master IIC
Multi-Master IIC
Multi-Master IIC
Multi-Master IIC
Multi-Master IIC
Status Register
—
(MMADR)
(MMDRR)
(MMDTR)
(MIMCR)
(MMCR)
(MMSR)
Rev. 2.1
Six registers are associated with the Multi-master IIC module, they are
outlined in the following sections.
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Read:
Read:
Read:
Read: MMRXIF
Read:
Read: MMRD7
Write:
Write:
Write:
Write:
Write:
Write:
Table 14-2. MMIIC I/O Register Summary
MMALIF
MMAD7
MMTD7
MMEN
Bit 7
Multi-Master IIC Interface (MMIIC)
0
1
0
0
0
1
0
MMNAKIF
= Unimplemented
MMTXIF MMATCH MMSRW MMRXAK
MMAD6
MMRD6
MMTD6
MMIEN
6
0
0
0
0
0
1
0
MMRD5
MMAD5
MMTD5
MMBB
5
0
1
0
0
0
1
0
MMRD4
MMAST
MMAD4
MMTD4
4
0
0
0
0
0
1
0
MMTXAK
MMAD3
MMTD3
MMRD3
MMRW
3
0
0
0
1
1
0
Multi-Master IIC Interface (MMIIC)
MMBR2
MMAD2
MMRD2
MMTD2
2
0
0
0
0
0
0
1
0
MMTXBE MMRXBF
MMRD1
MMBR1
MMAD1
MMTD1
1
0
0
0
0
1
1
0
Data Sheet
MMEXTAD
MMRD0
MMBR0
MMTD0
Bit 0
0
0
0
0
0
1
0
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