MC68HC908GT16_07 FREESCALE [Freescale Semiconductor, Inc], MC68HC908GT16_07 Datasheet - Page 29

• Manufacturer Part Number: MC68HC908GT16_07
• Description: Microcontrollers
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Chapter 2
Memory
2.1 Introduction
The CPU08 can address 64 Kbytes of memory space. The memory map, shown in
2.2 Unimplemented Memory Locations
Accessing an unimplemented location can cause an illegal address reset. In the memory map
and in register figures in this document, unimplemented locations are shaded.
2.3 Reserved Memory Locations
Accessing a reserved location can have unpredictable effects on MCU operation. In the
in register figures in this document, reserved locations are marked with the word Reserved or with the
letter R.
2.4 Input/Output (I/O) Section
Most of the control, status, and data registers are in the zero page area of $0000–$003F. Additional I/O
registers have these addresses:
Freescale Semiconductor
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
User Flash memory:
–
–
512 bytes of random-access memory (RAM)
720 bytes of Flash programming routines read-only memory (ROM)
36 bytes of user-defined vectors
304 bytes of monitor ROM
$FE00; SIM break status register, SBSR
$FE01; SIM reset status register, SRSR
$FE02; reserved, SUBAR
$FE03; SIM break flag control register, SBFCR
$FE04; interrupt status register 1, INT1
$FE05; interrupt status register 2, INT2
$FE06; interrupt status register 3, INT3
$FE07; reserved
$FE08; Flash control register, FLCR
$FE09; break address register high, BRKH
$FE0A; break address register low, BRKL
$FE0B; break status and control register, BRKSCR
MC68HC908GT16 — 15,872 bytes
MC68HC908GT8 — 7,680 bytes
MC68HC908GT16 • MC68HC908GT8 • MC68HC08GT16 Data Sheet, Rev. 5.0
Figure
Figure 2-1
2-1, includes:
(Figure
and
2-1)
29