`TMCP23X17Controller`
		IODIRA
		IPOLA
		GPINTENA
		DEFVALA
		INTCONA
		IOCONA
		GPPUA
	ro	INTFA
	ro	INTCAPA
		GPIOA
		OLATA
		IODIRB
		IPOLB
		GPINTENB
		DEFVALB
		INTCONB
		IOCONB
		GPPUB
	ro	INTFB
	ro	INTCAPB
		GPIOB
		OLATB
		IOCON
		BANK
		MIRROR
		SEQOP
		DISSLW
		HAEN
		ODR
		INTPOL
	ro	Address
		OwnsDevice