MC68HC908AP64_07 FREESCALE [Freescale Semiconductor, Inc], MC68HC908AP64_07 Datasheet - Page 236

• Manufacturer Part Number: MC68HC908AP64_07
• Description: Microcontrollers
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Multi-Master IIC Interface (MMIIC)
14.6.1
MMAD[7:1] — Multi-Master Address
MMEXTAD — Multi-Master Expanded Address
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These seven bits represent the MMIIC interface’s own specific slave address when in slave mode, and
the calling address when in master mode. Software must update MMAD[7:1] as the calling address
while entering master mode and restore its own slave address after master mode is relinquished. This
register is cleared as $A0 upon reset.
This bit is set to expand the address of the MMIIC in slave mode. When set, the MMIIC will
acknowledge the following addresses from a calling master: $MMAD[7:1], 0000000, and 0001100.
Reset clears this bit.
For example, when MMADR is configured as:
The MMIIC module will respond to the calling address:
or the general calling address:
or the calling address:
Note that bit-0 of the 8-bit calling address is the MMRW bit from the calling master.
1 = MMIIC responds to the following calling addresses:
0 = MMIIC responds to address $MMAD[7:1]
MMIIC
$MMAD[7:1], 0000000, and 0001100.
Address:
Reset:
Read:
Write:
Address Register (MMADR)
MMAD7
Bit 7
Bit 7
1
1
0
0
MMAD7
$0048
Bit 7
1
Figure 14-4. MMIIC Address Register (MMADR)
MMAD6
1
6
1
0
6
0
MMAD6
6
0
MC68HC908AP Family Data Sheet, Rev. 4
MMAD5
0
5
0
0
5
0
MMAD5
5
1
MMAD4
1
4
1
0
4
1
MMAD4
4
0
MMAD3
0
3
0
0
3
1
MMAD3
3
0
MMAD2
1
2
1
0
2
0
MMAD2
2
0
MMAD1
Bit 1
Bit 1
0
0
0
0
MMAD1
1
0
MMEXTAD
1
Freescale Semiconductor
MMEXTAD
Bit 0
0