Dtc Activation By Interrupt; Overview; Block Diagram - Renesas H8S/2319 series Hardware Manual

5.6

DTC Activation by Interrupt

5.6.1

Overview

The DTC can be activated by an interrupt. In this case, the following options are available.
1. Interrupt request to CPU
2. Activation request to DTC
3. Selection of a number of the above
For details of interrupt requests that can be used with to activate the DTC, see section 7, Data
Transfer Controller.
5.6.2

Block Diagram

Figure 5-9 shows a block diagram of the DTC and interrupt controller.
IRQ
interrupt
Interrupt source
On-chip
clear signal
supporting
module
Rev. 5.00, 12/03, page 136 of 1088
Interrupt
request
Selection
circuit
Select
signal
DTCER
DTVECR
clear signal
Interrupt controller
Figure 5-9 Interrupt Control for DTC
Control logic
Clear signal
SWDTE
Determination of
priority
DTC activation
request vector
number
DTC
Clear signal
CPU interrupt
request vector
number
CPU
I, I2 to I0