mc68hc908bd48 Freescale Semiconductor, Inc, mc68hc908bd48 Datasheet - Page 182

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

Multi-Master IIC Interface (MMIIC)
14.5.1 Multi-Master IIC Address Register (MMADR)
Data Sheet
182
Address:
MMAD[7:1] — Multi-Master Address
MMEXTAD — Multi-Master Expanded Address
Reset:
Read:
Write:
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.
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.
Figure 14-1. Multi-Master IIC Address Register (MMADR)
1 = MMIIC calling address is $MMAD[7:4]0
0 = MMIIC address is $MMAD[7:1]
MMAD7
$004B
Bit 7
MMIIC respond address is $00, and $MMAD[7:4]0 to
$MMAD[7:4]F
Multi-Master IIC Interface (MMIIC)
1
MMAD6
6
0
MMAD5
5
1
MMAD4
4
0
MMAD3
3
0
MC68HC908BD48
MMAD2
Freescale Semiconductor
2
0
MMAD1
1
0
—
MMEXTAD
Rev. 2.1
Bit 0
0