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M68HC08 Datasheet(PDF) 182 Page - Freescale Semiconductor, Inc

Part # M68HC08
Description  Microcontrollers
PDF  288 Pages
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

M68HC08 Datasheet(HTML) 182 Page - Freescale Semiconductor, Inc

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Multi-Master IIC Interface (MMIIC)
Data Sheet
MC68HC908BD48 — Rev. 2.1
182
Multi-Master IIC Interface (MMIIC)
Freescale Semiconductor
14.5.1 Multi-Master IIC Address Register (MMADR)
MMAD[7:1] — Multi-Master Address
These 7 bits can be the MMIIC interface’s own specific slave address
in slave mode or the calling address when in master mode. Reset sets
a default value of $A0.
MMEXTAD — Multi-Master Expanded Address
This bit is set to expand the calling address of the MMIIC in slave
mode. When set, the MMIIC will acknowledge the general call
address $00 and the matched 4-bit MSB address, MMAD[7:4].
For example, when MMAD[7:1] = $A1 and MMEXTAD = 1, the MMIIC
calling address is $A0, and it will acknowledge calling addresses $00
and $A0 to $AF.
Reset clears this bit.
1 = MMIIC calling address is $MMAD[7:4]0
MMIIC respond address is $00, and $MMAD[7:4]0 to
$MMAD[7:4]F
0 = MMIIC address is $MMAD[7:1]
Address:
$004B
Bit 7
654321
Bit 0
Read:
MMAD7
MMAD6
MMAD5
MMAD4
MMAD3
MMAD2
MMAD1 MMEXTAD
Write:
Reset:
10100000
Figure 14-1. Multi-Master IIC Address Register (MMADR)



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