h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 152

• Manufacturer Part Number: h8s-2646
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Section 5 Interrupt Controller
Operation Order: If the same interrupt is selected as a DTC activation source and a CPU
interrupt source, the DTC data transfer is performed first, followed by CPU interrupt exception
handling.
Table 5.11 shows the interrupt factor clear control and selection of interrupt factors by
specification of the DTCE bit of DTCERA to DTCERG, DTCERI of DTC, and the DISEL bit of
DTC’s MRB.
Table 5.11 Interrupt Source Selection and Clearing Control
DTC
DTCE
0
1
Legend:
Notes on Use: SCI and A/D converter interrupt sources are cleared when the DTC reads or writes
to the prescribed register.
Rev. 5.00 Sep 22, 2005 page 126 of 1136
REJ09B0257-0500
∆
X : The relevant bit cannot be used.
* : Don’t care
: The relevant interrupt is used. Interrupt source clearing is performed.
: The relevant interrupt is used. The interrupt source is not cleared.
(The CPU should clear the source flag in the interrupt handling routine.)
Settings
DISEL
*
0
1
Interrupt Source Selection/Clearing Control
DTC
X
∆
CPU
∆
X
∆