SN8P2740 Series
ADC, OP-amp, Comparator 8-Bit Micro-Controller
6.4 GIE GLOBAL INTERRUPT OPERATION
GIE is the global interrupt control bit. All interrupts start work after the GIE = 1 It is necessary for interrupt service
request. One of the interrupt requests occurs, and the program counter (PC) points to the interrupt vector (ORG 8) and
the stack add 1 level.
0DFH
STKP
Read/Write
After reset
Bit 7
GIE
R/W
0
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
STKPB2
R/W
Bit 1
STKPB1
R/W
Bit 0
STKPB0
R/W
-
-
-
-
-
-
-
-
-
-
-
-
1
1
1
Bit 7
GIE: Global interrupt control bit.
0 = Disable global interrupt.
1 = Enable global interrupt.
Example: Set global interrupt control bit (GIE).
B0BSET FGIE
; Enable GIE
Note: The GIE bit must enable during all interrupt operation.
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