MC68HC908LD64 Datasheet, PDF (42/362 Pages) Freescale Semiconductor, Inc – Microcontrollers

Memory Map
2.4 Reserved Memory Locations
Accessing a reserved location can have unpredictable effects on MCU
operation. In the Figure 2-1 and in register figures in this document,
reserved locations are marked with the word Reserved or with the
letter R.
2.5 Input/Output (I/O) Section
Most of the control, status, and data registers are in the zero page area
of $0000–$007F. Additional I/O registers have these addresses:
• $FE00; SIM break status register, SBSR
• $FE01; SIM reset status register, SRSR
• $FE02; Reserved
• $FE03; SIM break flag control register, SBFCR
• $FE04; Interrupt status register 1, INT1
• $FE05; Interrupt status register 2, INT2
• $FE06; Reserved
• $FE07; 47,616 bytes FLASH control register, FLCR
• $FE08; 47,616 bytes FLASH block protect register, FLBPR
• $FE09; Reserved
• $FE0A; 13K-bytes FLASH control register, FLCR1
• $FE0B; 13K-bytes FLASH block protect register, FLBPR1
• $FE0C; Break address register high, BRKH
• $FE0D; Break address register low, BRKL
• $FE0E; Break status and control register, BRKSCR
• $FE0F; Reserved
• $FFFF; COP control register, COPCTL
Data registers are shown in Figure 2-2. Table 2-1 is a list of vector
locations.
Data Sheet
42
Memory Map
MC68HC908LD64 — Rev. 3.0
Freescale Semiconductor