Datasheet

System Integration Module
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System Integration Module
8-8 MCF5206e USER’S MANUAL MOTOROLA
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BA[31:10] - Base Address
This field defines the base address location of all internal modules and SIM resources.
SC, SD, UC, UD - Address Space Masks
This field enables or disables specific address spaces, placing the internal modules in a
specific address space. If an address space is disabled, an access to the register location
in that address space becomes an external bus access, and the module resource is not
accessed. The address space mask bits are
SC = Supervisor code address space mask
SD = Supervisor data address space mask
UC = User code address space mask
UD = User data address space mask
For each address space bit:
0= An access to the internal module can occur for this address space.
1= Disable this address space from the internal module selection. If this address space
is used, no access occurs to the internal peripheral; instead, an external bus cycle
is generated.
V - Valid
This bit indicates when the contents of the MBAR are valid. The base address value is not
used, and all internal modules are not accessible until the V bit is set. An external bus cycle
is generated if the base address field matches the internal core address, and the V bit is
clear.
0 = Contents of MBAR are not valid.
1 = Contents of MBAR are valid.
8.3.2.2 SIM CONFIGURATION REGISTER (SIMR). The SIMR has user- programmable
bits to control the following:
• Operation of software watchdog timer when the internal freeze signal is asserted
BA31 BA30 BA29 BA28 BA27 BA26 BA25 BA24 BA23 BA22 BA21 BA20 BA19 BA18 BA17 BA16
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
----------------
RESET:
BA15BA14BA13BA12BA11BA10-----SCSDUCUDV
1514131211109876543210
------00000----0
RESET:
Module Base Address Register (MBAR)
Fr
eescale S
emiconduct
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Freescale Semiconductor, Inc.
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