External Interrupt Mode Register 1 Format - NEC PD78081(A) User Manual

(3) External interrupt mode register 1 (INTM1)
This register sets the valid edge for INTP3.
INTM1 is set with an 8-bit memory manipulation instruction.
RESET input sets INTM1 to 00H.
7 6 5
Symbol
0 0 0
INTM1
Caution Set 0 to the bits 2 to 7.
CHAPTER 10 A/D CONVERTER
Figure 10-4. External Interrupt Mode Register 1 Format
4 3 2 1
0 0 0 ES41 ES40
After
0 Address
Reset
FFEDH 00H
ES41 ES40 INTP3 Valid Edge Selection
0 0 Falling edge
0 1 Rising edge
1 0 Setting prohibited
1 1 Both falling and rising edges
R/W
R/W
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