Motorola MC68HC05RC16, MC68HC05RC8 manual 29

Memory

Memory Map

Addr.	Register	Bit 7	6	5	4	3	2	1	Bit 0
$0000	Port A Data Register
$0001	Port B Data Register
$0002	Port C Data Register
$0003	Reserved	R	R	R	R	R	R	R	R
$0004 Port A Data Direction Register
$0005 Port B Data Direction Register
$0006 Port C Data Direction Register
$0007	Reserved	R	R	R	R	R	R	R	R
$0008	Timer Control and Status Reg.	CTOF	RTIF	TOFE	RTIE	TOFC	RTFC	RT1	RT0
$0009	Timer Counter Register
$000A	Reserved	R	R	R	R	R	R	R	R
$000B	Reserved	R	R	R	R	R	R	R	R
$000C	Reserved	R	R	R	R	R	R	R	R
$000D	Reserved	R	R	R	R	R	R	R	R
$000E	Reserved	R	R	R	R	R	R	R	R
$000F	Reserved	R	R	R	R	R	R	R	R
$0010	IR Timer CHR1	IROLN	0	PH5	PH4	PH3	PH2	PH1	PH0
$0011	IR Timer CLR1	IROLP	0	PL5	PL4	PL3	PL2	PL1	PL0
$0012	IR Timer CHR2	0	0	SH5	SH4	SH3	SH2	SH1	SH0
$0013	IR Timer CLR2	0	0	SL5	SL4	SL3	SL2	SL1	SL0
$0014	IR Timer MCSR	EOC	0	EIMSK	EXMRK	BASE	MODE	EOCIE	MCGEN
$0015	IR Timer MDR1	MB11	MB10	MB9	MB8	SB11	SB10	SB9	SB8
$0016	IR Timer MDR2	MB7	MB6	MB5	MB4	MB3	MB2	MB1	MB0
$0017	IR Timer MDR3	SB7	SB6	SB5	SB4	SB3	SB2	SB1	SB0
$0018	Reserved	R	R	R	R	R	R	R	R
$0019	Reserved	R	R	R	R	R	R	R	R

R= Reserved

Figure 2-2. I/O Registers

MC68HC05RC16 — Rev. 3.0		General Release Specification
MOTOROLA	Memory	29