MCF5272VF66 Freescale, MCF5272VF66 Datasheet - Page 164

• Manufacturer Part Number: MCF5272VF66
• Manufacturer: Freescale

Specifications of MCF5272VF66

• Family Name: MCF5xxx
• Device Core: ColdFire
• Device Core Size: 32b
• Frequency (max): 66MHz
• Instruction Set Architecture: RISC
• Supply Voltage 1 (typ): 3.3V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 196
• Package Type: MA-BGA
• Lead Free Status / RoHS Status: Not Compliant

System Integration Module (SIM)
determine if an internal peripheral is being accessed. MBAR masks specific address spaces using the
address space fields. Attempts to access a masked address space generate an external bus access.
Addresses hitting overlapping memory spaces take the following priority:
Thus, if an overlapping address hits in the SRAM, ROM, or cache, the SIM will not generate a bus cycle,
either externally or to an on-chip peripheral.
Table 6-2
The following example shows how to set the MBAR to location 0x1000_0000 using the D0 register.
Setting MBAR[V] validates the MBAR location. This example assumes all accesses are valid:
move.1 #0x10000001,DO
movec DO,MBAR
6-4
31–16
15–5
Bits
4
3
2
1
0
1. SRAM, ROM, and cache
2. MBAR
3. Chip select
Address
Reset
Field
R/W
Field
UC
UD
describes MBAR fields.
BA
SC
SD
—
V
31
The MBAR region must be mapped to non-cacheable space.
Base address. Defines the base address for a 64-Kbyte address range
Reserved, should be cleared.
Setting masks supervisor code space in MBAR address range
Setting masks supervisor data space in MBAR address range
Setting masks user code space in MBAR address range
Setting masks user data space in MBAR address range
Valid. Determines whether MBAR settings are valid.
0 MBAR contents are invalid.
1 MBAR contents are valid.
MCF5272 ColdFire
Figure 6-2. Module Base Address Register (MBAR)
W initially through MOVEC; R/W after initialization in supervisor mode
BA
CPU + 0x0C0F initially; MBAR+0x000 after initialization
Table 6-2. MBAR Field Descriptions
®
Integrated Microprocessor User’s Manual, Rev. 3
NOTE
16 15
Undefined
Description
—
.
5
SC SD UC UD V
4
Attribute Mask Bits
Freescale Semiconductor
3
2
1
0
0