upd78f0114hgb-8es-a Renesas Electronics Corporation., upd78f0114hgb-8es-a Datasheet - Page 333

• Manufacturer Part Number: upd78f0114hgb-8es-a
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

16.1 Functions of Key Interrupt
edge to the key interrupt input pins (KR0 to KR3).
16.2 Configuration of Key Interrupt
A key interrupt (INTKR) can be generated by setting the key return mode register (KRM) and inputting a falling
The key interrupt includes the following hardware.
KR3
KR2
KR1
KR0
0
Key return mode register (KRM)
Control register
Table 16-1. Assignment of Key Interrupt Detection Pins
KRM0
KRM1
KRM2
KRM3
0
CHAPTER 16 KEY INTERRUPT FUNCTION
Item
Flag
0
Figure 16-1. Block Diagram of Key Interrupt
Table 16-2. Configuration of Key Interrupt
0
KRM3 KRM2 KRM1 KRM0
User’s Manual U16961EJ4V0UD
Controls KR0 signal in 1-bit units.
Controls KR1 signal in 1-bit units.
Controls KR2 signal in 1-bit units.
Controls KR3 signal in 1-bit units.
Key return mode register (KRM)
Description
Configuration
INTKR
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