IBM uPD78082 - Manual (Page 148)

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CHAPTER 10 A/D CONVERTER
(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.
Figure 10-4. External Interrupt Mode Register 1 Format
0
7
0
6
0 0
4
0
3 2 1 0
FFEDH
Address
INTM1
Symbol
0 ES41 ES40
5
00H
After
Reset
R/W
R/W
ES41
0
0
1
1
ES40
0
1
0
1
INTP3 Valid Edge Selection
Falling edge
Rising edge
Setting prohibited
Both falling and rising edges
Caution Set 0 to the bits 2 to 7.