mc68hc908kx8 Freescale Semiconductor, Inc, mc68hc908kx8 Datasheet - Page 23

• Manufacturer Part Number: mc68hc908kx8
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Chapter 2
Memory
2.1 Introduction
The central processor unit (CPU08) can address 64 Kbytes of memory space.
The memory map, shown in
2.2 I/O Registers
Most of the control, status, and data registers are in the zero-page area of $0000–$003F. Additional
input/output (I/O) registers have the following addresses:
A summary of the available registers is provided in
2.3 Monitor ROM
The 295 bytes at addresses $FE20–$FF46 are reserved ROM addresses that contain the instructions for
the monitor functions.
Freescale Semiconductor
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7680 bytes of FLASH memory
192 bytes of random-access memory (RAM)
36 bytes of user-defined vectors
295 bytes of monitor read-only memory (ROM)
$FE01 — SIM reset status register, SRSR
$FE04 — Interrupt status register 1, INT1
$FE05 — Interrupt status register 2, INT2
$FE06 — Interrupt status register 3, INT3
$FE08 — FLASH control register, FLCR
$FE09 — Break address register high, BRKH
$FE0A — Break address register low, BRKL
$FE0B — Break status and control register, BRKSCR
$FE0C — LVI status register, LVISR
$FF7E — FLASH block protect register, FLBPR
$FFFF — COP control register, COPCTL
in non-volatile FLASH memory
MC68HC908KX8 • MC68HC908KX2 • MC68HC08KX8 Data Sheet, Rev. 2.1
Figure
2-1, includes:
Figure
2-2.
Table 2-1
is a list of vector locations.
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