Datasheet

MC9S08AC16 Series Data Sheet, Rev. 9
Freescale Semiconductor 41
Chapter 4
Memory
4.1 MC9S08AC16 Series Memory Map
Figure 4-1 shows the memory maps for the MC9S08AC16 Series MCUs. On-chip memory in the
MC9S08AC16 Series of MCU 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 0x006F)
• High-page registers (0x1800 through 0x185F)
• Nonvolatile registers (0xFFB0 through 0xFFBF)
Figure 4-1. MC9S08AC16 Series Memory Maps
MC9S08AC16 and MC9S08AW16A
DIRECT PAGE REGISTERS
RAM
UNIMPLEMENTED
HIGH PAGE REGISTERS
1024 BYTES
5008 BYTES
0x0000
0x006F
0x0070
0x046F
0x1800
0x17FF
0x185F
0xFFFF
0x0470
FLASH
16,384 BYTES
0x1860
UNIMPLEMENTED
42,912 BYTES
0xBFFF
0xC000
MC9S08AC8 and MC9S08AW8A
DIRECT PAGE REGISTERS
RAM
UNIMPLEMENTED
HIGH PAGE REGISTERS
768 BYTES
5008 BYTES
0x0000
0x006F
0x0070
0x1800
0x17FF
0x185F
0xFFFF
FLASH
8192 BYTES
0x1860
0xDFFF
0xE000
RESERVED — 256 BYTES
0x046F
0x0470
0x036F
0x0370
UNIMPLEMENTED
42,912 BYTES
0xBFFF
0xC000
RESERVED
8192 BYTES