Fujitsu FR81S Benutzerhandbuch
CHAPTER 36: EXTERNAL BUS INTERFACE
5. Operation
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER : EXTERNAL BUS INTERFACE
FUJITSU SEMICONDUCTOR CONFIDENTIAL
46
The above setting values are written to ASR as words.
The CS area settings are explained below.
1. Determine the size of the CS area and select the value of ASZ[3:0] from "4.1 CS Area Setting
Registers: ASR0 to ASR3 (Area Setting Register 0-3)".
2. Set the CS area start address. The starting address is configured by setting the upper bits of the address
in SADR. However, the starting address has the boundaries determined in advance depending on the
size of the area specified in the following table. Set the valid bits of SADR according to "4.1 CS
Area Setting Registers: ASR0 to ASR3 (Area Setting Register 0-3)". Set invalid SADR bits to "0".
size of the area specified in the following table. Set the valid bits of SADR according to "4.1 CS
Area Setting Registers: ASR0 to ASR3 (Area Setting Register 0-3)". Set invalid SADR bits to "0".
MB91520 Series
MN705-00010-1v0-E
1245