Datasheet

Table Of Contents
Section 5 Interrupt Controller
Page 102 of 846 REJ09B0140-0900 Rev. 9.00
Sep 16, 2010
H8S/2215 Group
Table 5.5 Number of States in Interrupt Handling Routine Execution Statuses
Object of Access
External Device
8-Bit Bus 16-Bit Bus
Symbol
Internal
Memory
2-State
Access
3-State
Access
2-State
Access
3-State
Access
Instruction fetch S
I
1 4 6 + 2m 2 3 + m
Branch address read S
J
Stack manipulation S
K
Legend:
m: Number of wait states in an external device access.
5.6.5 DTC Activation by Interrupt
The DTC and DMAC can be activated by an interrupt. In this case, the following options are
available:
Interrupt request to CPU
Activation request to DTC
Activation request to DMAC
Selection of a number of the above
For details of interrupt requests that can be used with to activate the DTC and DMAC, see section
7, DMA Controller (DMAC) and section 8, Data Transfer Controller (DTC).
Figure 5.7 shows a block diagram of the interrupt controller of DTC and DMAC.