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19. Usage Notes
19.1 SFR
19.1.1 Precaution for 48-pin package
Set the IFSR20 bit in the IFSR2A register to "1" after reset and set the PACR2 to PACR0 bits in the PACR
register to "100
2
19.1.2 Precaution for 42-pin package
Set the IFSR20 bit in the IFSR2A register to "1" after reset and set the PACR2 to PACR0 bits in the PACR
register to "001
2
19.1.3 Register Setting
Immediate values should be set in the registers containing write-only bits. When establishing a new value
by modifying a previous value, write the previous value into RAM as well as the register. Change the
contents of the RAM and then transfer the new value to the register.
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19. Usage Notes
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