DF2211NP24V Renesas Technology / Hitachi Semiconductor, DF2211NP24V Datasheet - Page 154

• Manufacturer Part Number: DF2211NP24V
• Description: H8S/2200 Series, 2212 Group, USB, RTC, HSS TNP-64B; Vcc= 2.7 to 3.6 volts, Temp= -20 to 75 C; Package: PVQN0064LB-A
• Manufacturer: Renesas Technology / Hitachi Semiconductor

The set timing for IRQnF is shown in figure 5.3.
The detection of IRQn interrupts does not depend on whether the relevant pin has been set for
input or output. However, when a pin is used as an external interrupt input pin, do not clear the
corresponding DDR to 0; and use the pin as an I/O pin for another function. IRQnF interrupt
request flag is set when the setting condition is satisfied, regardless of IER settings. Accordingly,
refer to only necessary flags.
5.4.2
The sources for internal interrupts from on—chip peripheral modules have the following features:
• For each on—chip peripheral module there are flags that indicate the interrupt request status,
• The interrupt priority level can be set by means of IPR.
• The DMAC can be activated by a TPU, SCI, or other interrupt request.
• When the DMAC is activated by an interrupt request, it is not affected by the interrupt control
Rev.7.00 Dec. 24, 2008 Page 100 of 698
REJ09B0074-0700
and enable bits that select enabling or disabling of these interrupts. If both of these are set to 1
for a particular interrupt source, an interrupt request is issued to the interrupt controller.
mode or CPU interrupt mask bit.
IRQn
input pin
IRQnF
Internal Interrupts
Note: n = 7 to 0
Figure 5.3 Timing of Setting IRQnF