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CHAPTER 21 400 kHz I2C INTERFACE
Table 21.2-4 Function of each bit of the ten bit address mask register (ITMKn)
Bit name
bit 9 to 0
TM9 to TM0:
Ten bit slave
address mask bits
560
This register is used to mask the ten bit slave address of the interface. Write access to
these bits is only possible if the interface is disabled (EN="0" in ICCR).
"0": Bit is not used in slave address comparison
"1": Bit is used in slave address comparison
This can be used to make the interface acknowledge on multiple ten bit slave addresses.
Only the bits set to "1" in this register are used in the ten bit slave address comparison.
The received slave address is written back to the ITBA register and thus may be
determined by reading the ITBA register if the AAS bit in the IBSR register is "1".
Note:
If the address mask is changed after the interface has been enabled, the slave address
should also be set again since it could have been overwritten by a previously
received slave address.
MB96300 Super Series Hardware Manual
Function
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