Datasheet

78K0/Kx2-L CHAPTER 17 INTERRUPT FUNCTIONS
R01UH0028EJ0400 Rev.4.00 606
Sep 27, 2010
(2) Interrupt mask flag registers (MK0L, MK0H, MK1L, MK1H)
The interrupt mask flags are used to enable/disable the corresponding maskable interrupt servicing.
MK0L, MK0H, MK1L, and MK1H are set by a 1-bit or 8-bit memory manipulation instruction. When MK0L and MK0H,
and MK1L and MK1H are combined to form 16-bit registers MK0 and MK1, they are set by a 16-bit memory
manipulation instruction.
Reset signal generation sets these registers to FFH.
Figure 17-9. Format of Interrupt Mask Flag Registers (MK0L, MK0H, MK1L, MK1H) (78K0/KY2-L)
Address: FFE4H After reset: FFH R/W
Symbol <7> 6 5 4 3 <2> <1> <0>
MK0L SREMK6 1 1 1 1 PMK1 PMK0 LVIMK
Address: FFE5H After reset: FFH R/W
Symbol <7> <6> 5 4 <3> 2 <1> <0>
MK0H TMMK010 TMMK000 1 1 TMMKH1 1 STMK6 SRMK6
Address: FFE6H After reset: FFH R/W
Symbol 7 6 5 4 <3> 2 1 <0>
MK1L 1 1 1 1 TMMK51 1 1 ADMK
Address: FFE7H After reset: FFH R/W
Symbol 7 6 5 4 3 2 1 <0>
MK1H 1 1 1 1 1 1 1 IICAMK0
XXMKX Interrupt servicing control
0 Interrupt servicing enabled
1 Interrupt servicing disabled
Caution Be sure to set bits 3 to 6 of MK0L, bits 2, 4 and 5 of MK0H, bits 1, 2, 4 to 7 of MK1L, and bits 1 to 7 of
MK1H to 1.