MC9S08GT16A Datasheet, PDF (41/300 Pages) Freescale Semiconductor, Inc – Microcontrollers

Chapter 4
Memory
4.1 MC9S08GT16A/GT8A Memory Map
As shown in Figure 4-1, on-chip memory in the MC9S08GT16A/GT8A series of MCUs consists of RAM,
FLASH program memory for nonvolatile data storage, plus I/O and control/status registers. The registers
are divided into three groups:
• Direct-page registers (0x0000 through 0x007F)
• High-page registers (0x1800 through 0x182B)
• Nonvolatile registers (0xFFB0 through 0xFFBF)
DIRECT PAGE REGISTERS
RAM 2048 BYTES
0x0000
0x007F
0x0080
0x087F
0x0880
UNIMPLEMENTED
3968 BYTES
HIGH PAGE REGISTERS
0x17FF
0x1800
0x182B
0x182C
DIRECT PAGE REGISTERS
RAM 1024 BYTES
Reserved 1024 BYTES
0x0000
0x007F
0x0080
0x047F
0x0480
0x087F
0x0880
UUNNIIMMPPLLEEMMEENNTTEEDD
49399268BBYYTETESS
HIGH PAGE REGISTERS
0x17FF
0x1800
0x182B
0x182C
UNIMPLEMENTED
42964 BYTES
UNIMPLEMENTED
42964 BYTES
FLASH
16384 BYTES
MC9S08GT16A
0xBFFF
0xC000
0xFFFF
Reserved
8192 BYTES
FLASH
8192 BYTES
MC9S08GT8A
Figure 4-1. MC9S08GT16A/GT8A Memory Map
0xBFFF
0xC000
0xDFFF
0xE000
0xFFFF
MC9S08GT16A/GT8A Data Sheet, Rev. 1
Freescale Semiconductor
41