Fujitsu F202RA, MB89202 16.4 Operations of the Wild Register Functions

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CHAPTER 16 WILD REGISTER FUNCTION
16.4 Operations of the Wild Register Functions
This section describes the operation order of the wild register.
■Operation Order of the Wild Register Function
Table 16.4-1 describes the operation order of the wild register. In the operation example column, it corrects
data at address FC36H, from FFH to B5H.
■Wild Register Addresses List
Table 16.4-2 lists the addresses corresponding to the wild register numbers.
Table 16.4-1 Operation Order of Wild Register
Operation Operation example
1Set an address of the wild register correspondence area to
the address set register.
Address: FC36H/data: FFH
WRARL0=36H
WRARH0=FCH
2 Set the correction data to the data setting register. WRDR0=B5H
3 Set "1" to the address comparison EN00 bit. WREN=01H
4 The wild register works at the time of address matching.
When address = FC36H is accessed
Data = B5H
Table 16.4-2 Wild Register Addresses List
Higher address Lower address Data
Register name Address Register name Address Register name Address
1WRARH0 040HWRARL0 041HWRDR0 042H
2WRARH1 043HWRARL1 044HWRDR1 045H