R01UH0823EJ0100 Rev.1.00 Page 1657 of 1823
Jul 31, 2019
RX23W Group 48. Data Operation Circuit (DOC)
48.5 Event Link Output
The DOC outputs event signals for the event link controller (ELC) under the following conditions, and these can be used
to initiate operations by other modules selected in advance.
The compared values either match or mismatch
The result of data addition is greater than FFFFh
The result of data subtraction is less than 0000h
48.5.1 Interrupt Handling and Event Linking
The DOC has a bit to enable or disable interrupts. An interrupt request signal is output for the CPU when an interrupt
source is generated while the corresponding enable bit is enabled.
In contrast, an event link output signal is sent to other modules as an event signal via the ELC when an interrupt source is
generated, regardless of the setting of the corresponding interrupt enable bit.
48.6 Usage Note
48.6.1 Module Stop Function Setting
Operation of the data operation circuit can be disabled or enabled using module stop control register B (MSTPCRB). The
initial setting is for the data operation circuit to be stopped. Register access is enabled by releasing the module stop state.
For details, refer to
section 11, Low Power Consumption.
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