Registers Controlling Interrupt Function; Flags Corresponding To Interrupt Request Signals - NEC switch User Manual

11.3 Registers Controlling Interrupt Function

The following five registers are used to control the interrupt functions.
• Interrupt request flag registers 0 and 1 (IF0 and IF1)
• Interrupt mask flag registers 0 and 1 (MK0 and MK1)
• External interrupt mode register 0 (INTM0)
• Program status word (PSW)
• Key return mode register 00 (KRM00)
Table 11-2 gives a listing of interrupt request flag and interrupt mask flag names corresponding to interrupt
requests.
Table 11-2. Flags Corresponding to Interrupt Request Signals
Interrupt Request Signal Name
INTWDT
INTUSBTM
INTUSBRT
INTUSBRD
INTUSBST
INTUSBRE
INTP0
INTCSI10
INTTM00
INTTM01
INTKR00
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CHAPTER 11 INTERRUPT FUNCTIONS
Interrupt Request Flag
TMIF4
USBTMIF
USBRTIF
USBRDIF
USBSTIF
USBREIF
PIF0
CSIIF10
TMIF00
TMIF01
KRIF00
User's Manual U12978EJ3V0UD
Interrupt Mask Flag
TMMK4
USBTMMK
USBRTMK
USBRDMK
USBSTMK
USBREMK
PMK0
CSIMK10
TMMK00
TMMK01
KRMK00