Fujitsu FR81S User Manual
CHAPTER 36: EXTERNAL BUS INTERFACE
5. Operation
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER : EXTERNAL BUS INTERFACE
FUJITSU SEMICONDUCTOR CONFIDENTIAL
42
5.10. CS Setting Flow
This section explains the CS setting method.
Notes:
·
Perform the CS configuration during the initialization settings after reset, and do not change the settings
thereafter.
·
In models with built-in ROM, perform changes and settings of CS area in the initial settings program
located in ROM.
·
In models without built-in ROM, because instruction fetch after reset is performed in the CS0 area, in
order to change the CS0 area first transfer the CS setting program to the built-in RAM and then branch
to the program area in built-in RAM to configure the CS area.
·
Operation is not guaranteed if the settings related to a CS area are changed while the CS area is being
accessed.
MB91520 Series
MN705-00010-1v0-E
1241