External Interrupt Mode Register 0 Format - NEC PD78056F User Manual

(6) External interrupt mode register 0 (INTM0)
This register is used to set INTP0 to INTP2 valid edges.
INTM0 is set with an 8-bit memory manipulation instruction.
RESET input sets INTM0 value to 00H.
Symbol 7 6 5
ES31 ES30 ES21 ES20 ES11 ES10
INTM0
Caution Before setting the valid edge of the INTP0/TI00/P00 pin, stop the timer operation by clearing bits
1 through 3 (TMC01 through TMC03) of the 16-bit timer mode control register (TMC0) to 0, 0, 0.
CHAPTER 8 16-BIT TIMER/EVENT COUNTER
Figure 8-8. External Interrupt Mode Register 0 Format
4 3 2 1 0
0 0
Address After Reset
FFECH 00H
ES11 ES10 INTP0 Valid Edge Selection
0 0 Falling edge
0 1 Rising edge
1 0 Setting prohibited
1 1 Both falling and rising edges
ES21 ES20 INTP1 Valid Edge Selection
0 0 Falling edge
0 1 Rising edge
1 0 Setting prohibited
1 1 Both falling and rising edges
ES31 ES30 INTP2 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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