mcf51jf128 Freescale Semiconductor, Inc, mcf51jf128 Datasheet - Page 140

• Manufacturer Part Number: mcf51jf128
• Description: Mcf51jf128 Reference Manual
• Manufacturer: Freescale Semiconductor, Inc

System Memory Map
Regions within the memory map are subject to restrictions with regard to the types of
CPU accesses allowed. The following table outlines these restrictions. Unsupported
access types terminate the bus cycle with an error. In response to a bus error termination,
the chip can be configured to generate a system reset, such as by ensuring the
CPUCR[ARD] bit is 0.
140
0x(00)00_0000
0x(00)20_0000
0x(00)28_0000
0x(00)40_0000
Base Address
Program flash
FlexNVM
FlexRAM
Mini-FlexBus
Region
Table 4-1. CPU Access Type Allowed by Region
Address Range
Figure 4-1. Generic V1 ColdFire Memory Map
0x(FF)FF_FFFF
0x(FF)FF_FFFF
0x(00)BF_FFFF
0x(00)BF_FFFF
0x(FF)FF_7FFF
0x(FF)FF_7FFF
0x(00)3F_FFFF
0x(00)3F_FFFF
0x(00)7F_FFFF
0x(00)7F_FFFF
0x(00)9F_FFFF
0x(00)9F_FFFF
0x(00)C0_000F
0x(00)C0_000F
0x(00)C0_0000
0x(00)C0_0000
0x(00)C0_0010
0x(00)C0_0010
0x(FF)FF_8000
0x(FF)FF_8000
0x(00)A0_0000
0x(00)A0_0000
0x(00)00_0000
0x(00)00_0000
0x(00)40_0000
0x(00)40_0000
0x(00)80_0000
0x(00)80_0000
MCF51JF128 Reference Manual, Rev. 2, 03/2011
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Table continues on the next page...
Byte
V1 ColdFire Memory Usage
Available for off-chip expansion
Available for off-chip expansion
x
x
x
x
Preliminary
Allocated to on-chip RAM
Allocated to on-chip flash
ColdFire Rapid GPIO
Slave Peripherals
Unimplemented
Read
Word
x
x
x
x
memory
1
Long
x
x
x
x
Byte
—
—
x
x
Freescale Semiconductor, Inc.
Write
Word
—
—
x
x
1
Long
—
—
x
x