Format Of Int2 Edge Detection Mode Register (Im2) - NEC PD750004 User Manual

Figure 6-11. Format of INT2 Edge Detection Mode Register (IM2)
Address
3 2
FB6H 0 0
Cautions 1. When the edge detection mode register is modified, test request flags may be set in
some cases. So, disable test inputs before modifying the edge detection mode
register. Then, clear the test request flags using a CLR1 instruction before enabling
test inputs.
2. When a low-level signal is applied to any of the pins subjected to falling edge detection,
IRQ2 is not set when a falling edge is detected on another pin.
Symbol
1 0
IM21 IM20 IM2
IM21 IM20
0
0
1
1
CHAPTER 6 INTERRUPT AND TEST FUNCTIONS
INT2 interrupt source
0 Specifies rising edge of INT2 pin input.
1
Specifies falling edge of any of KRx pin
0
inputs.
1
Interrupt input pin
INT2 (1)
KR4 - KR7 (4)
KR2 - KR7 (6)
KR0 - KR7 (8)
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