HD6432670 Hitachi, HD6432670 Datasheet - Page 164

• Manufacturer Part Number: HD6432670
• Description: (HD64F267x Series) 16-Bit Microcomputer
• Manufacturer: Hitachi

5.7.6
Note on IRQ Status Register (ISR)
Since IRQnF flags may be set to 1 depending on the pin states after a reset, be sure to read from
ISR after a reset and then write 0 to clear the IRQnF flags.
Rev. 2.0, 04/02, page 118 of 906