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MCF51QE128 MCU Series Reference Manual, Rev. 3
Freescale Semiconductor 57
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Chapter 4
Memory
4.1 MCF51QE128/64/32 Memory Map
As shown in Figure 4-1, on-chip memory in the MCF51QE128/64/32 series of MCUs consists of RAM
and flash program memory for nonvolatile code and data storage, plus I/O and control/status registers.
NOTE
Version 1 ColdFire devices contain 24-bit internal address buses, while
previous ColdFire cores have 32-bit internal address buses. Because there
may be some resources that use a 32-bit address, this chapter shows 24-bit
and 32-bit addresses by indicating the extra upper byte in parentheses.
Figure 4-1. MCF51QE128/64/32 Memory Maps
0x(00)02_0000
0x(00)00_0000
0x(00)01_FFFF
CPU Address
0x(00)7F_FFFF
0x(00)80_0000
0x(00)80_1FFF
0x(00)80_2000
0x(00)BF_FFFF
0x(FF)FF_8000
0x(FF)FF_FFFF
MCF51QE128
Slave
0x(00)01_0000
Peripherals
64 Kbytes
Flash
0x(00)00_0000
0x(00)00_FFFF
CPU Address
0x(00)7F_FFFF
0x(00)80_0000
Unimplemented
0x(00)BF_FFFF
0x(FF)FF_8000
0x(FF)FF_FFFF
MCF51QE64
0x(00)C0_0000
0x(00)C0_000F
ColdFire
Rapid GPIO
0x(00)C0_0000
0x(00)C0_000F
0x(00)C0_0010
0x(FF)FF_7FFF
0x(00)C0_0010
0x(FF)FF_7FFF
Unimplemented
Slave
RAM
8 Kbytes
Peripherals
128 Kbytes
Flash
Unimplemented
Unimplemented
ColdFire
Rapid GPIO
Unimplemented
Slave
RAM
8 Kbytes
0x(00)00_8000
Peripherals
32 Kbytes
Flash
0x(00)00_0000
0x(00)00_7FFF
CPU Address
0x(00)7F_FFFF
0x(00)80_0000
0x(00)80_1FFF
Unimplemented
0x(00)80_2000
0x(00)BF_FFFF
Unimplemented
0x(FF)FF_8000
0x(FF)FF_FFFF
MCF51QE32
ColdFire
Rapid GPIO
0x(00)C0_0000
0x(00)C0_000F
0x(00)C0_0010
0x(FF)FF_7FFF
Unimplemented
0x(00)80_1FFF
0x(00)80_2000
RAM
8 Kbytes
Unimplemented