External Interrupt Pin In Software Standby Mode And Watch Mode; Noise Canceller Switching; Irq Status Register (Isr) - Renesas H8S Series Hardware Manual

16-bit single-chip microcomputer

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External Interrupt Pin in Software Standby Mode and Watch Mode

• When the pins (IRQ15 to IRQ0, ExIRQ15 to ExIRQ0, KIN15 to KIN0, and WUE15 to

WUE0) are used as external input pins in software standby mode or watch mode, the pins

should not be left floating.

• When the external interrupt pins (IRQ7, IRQ6, ExIRQ15 to ExIRQ8, KIN7 to KIN0, and

WUE15 to WUE8) are used in software standby and watch modes, the noise canceller should

be disabled.

The noise canceller should be switched when the external input pins (IRQ7, IRQ6, ExIRQ15 to

ExIRQ8, KIN7 to KIN0, and WUE15 to WUE8) are high.

Since IRQnF may be set to 1 according to the pin state after reset, the ISR should be read after

reset, and then write 0 in IRQnF (n = 15 to 0).

Section 5 Interrupt Controller

Rev. 3.00 Jul. 14, 2005 Page 127 of 986

REJ09B0098-0300

H8s/2100 series H8s/2114r R4f2114r