M30222 Datasheet, PDF (12/237 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

M30222 Group ^{deUvnedloeprment}
MITSUBISHI MICROCOMPUTERS
Specifications in this manual are tentative and subject to change
Rev. G
CPU
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
• Bits 8 to 11: Reserved area
• Bits 12 to 14: Processor interrupt priority level (IPL)
Processor interrupt priority level (IPL) is configured with three bits, for specification of up to eight processor
interrupt priority levels from level 0 to level 7.
If a requested interrupt has priority greater than the processor interrupt priority level (IPL), the interrupt is
enabled.
• Bit 15: Reserved area.
b15
IPL
Fig. 1.7. Flag Register
b0
U I O B S Z D C _{Flag register (FLG)}
Carry flag
Debug flag
Zero flag
Sign flag
Register bank select flag
Overflow flag
Interrupt enable flag
Stack pointer select flag
Reserved area
Processor interrupt priorit
Reserved area
1-13