User Manual

Apollo3 Blue Datasheet
DS-A3-0p9p1 Page 282 of 909 2019 Ambiq Micro, Inc.
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cannot be accessed if IFCEN is 0, although all of the other registers are accessible. When the module is
not in use, the field should also be kept at 0 to minimize power. This is important even if IFCEN is a 0.
8.15 IOM Registers
IO Peripheral Master
INSTANCE 0 BASE ADDRESS:0x50004000
INSTANCE 1 BASE ADDRESS:0x50005000
INSTANCE 2 BASE ADDRESS:0x50006000
INSTANCE 3 BASE ADDRESS:0x50007000
INSTANCE 4 BASE ADDRESS:0x50008000
INSTANCE 5 BASE ADDRESS:0x50009000
Registers associated with the IOM master module. The IOM master module is responsible for performing
SPI and I2C master operations to/from external devices. Multiple devices