h8s-2169 Renesas Electronics Corporation., h8s-2169 Datasheet - Page 153

• Manufacturer Part Number: h8s-2169
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Interrupt Acceptance Control and 3-Level Control: In interrupt control modes 0 and 1,
interrupt acceptance control and 3-level mask control is performed by means of the I and UI bits in
CCR, and ICR (control level).
Table 5.6 shows the interrupts selected in each interrupt control mode.
Table 5.6
Legend:
*: Don’t care
Interrupt Control Mode
0
1
Interrupt
source
Interrupts Selected in Each Interrupt Control Mode
Figure 5.7 Block Diagram of Interrupt Control Operation
Interrupt control modes
Interrupt Mask Bits
I
0
1
0
1
acceptance control
and 3-level mask
ICR
Interrupt
0 and 1
control
UI
*
*
*
0
1
I
UI
Selected Interrupts
All interrupts (control level 1 has priority)
NMI and address break interrupt
All interrupts (control level 1 has priority)
NMI, address break and control level 1 interrupts
NMI and address break interrupt
Default priority
Rev. 3.00 Jan 18, 2006 page 125 of 1044
determination
Section 5 Interrupt Controller
Vector
number
REJ09B0280-0300