r5f71374an80fpv Renesas Electronics Corporation., r5f71374an80fpv Datasheet - Page 144

• Manufacturer Part Number: r5f71374an80fpv
• Description: 32-bit Risc Microcomputer Superh?? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

Section 6 Interrupt Controller (INTC)
6.8.1
1. For DTC, set the corresponding DTCE bits and DISEL bits to 1.
2. When an interrupt occurs, an activation request is sent to the DTC.
3. When completing a data transfer, the DTC clears the DTCE bit to 0 and sends an interrupt
4. The CPU clears the interrupt source in the interrupt handling routine then checks the transfer
6.8.2
1. For DTC, set the corresponding DTCE bits to 1 and clear the DISEL bits to 0.
2. When an interrupt occurs, an activation request is sent to the DTC.
3. When completing a data transfer, the DTC clears the activation source. No interrupt request is
4. However, when the transfer counter value = 0, the DTCE bit is cleared to 0 and an interrupt
5. The CPU performs the necessary end processing in the interrupt handling routine.
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REJ09B0402-0100
request to the CPU. The activation source is not cleared.
counter value. When the transfer counter value is not 0, the CPU sets the DTCE bit to 1 and
allows the next data transfer. If the transfer counter value = 0, the CPU performs the necessary
end processing in the interrupt processing routine.
sent to the CPU because the DTCE bit is held at 1.
request is sent to the CPU.
Interrupt source
Interrupt source
flag clear
Handling Interrupt Request Signals as Sources for DTC Activation and CPU
Interrupts
Handling Interrupt Request Signals as Sources for DTC Activation, but Not CPU
Interrupts
Figure 6.6 On-Chip Module Interrupt Control Block Diagram
Interrupt source flag clear by DTC
DTCER
DTCE clear
Interrupt controller
Interrupt priority
determination
DTC activation
request
DTCECLR
Transfer end
Interrupt request to CPU
DTC