h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 140

• 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
Figure 5.4 shows a block diagram of the priority decision circuit.
Interrupt Acceptance Control: In interrupt control mode 0, interrupt acceptance is controlled by
the I bit in CCR.
Table 5.6 shows the interrupts selected in each interrupt control mode.
Table 5.6
Interrupt Control Mode
0
2
Legend:
*: Don't care
Rev. 5.00 Sep 22, 2005 page 114 of 1136
REJ09B0257-0500
Interrupt source
Interrupts Selected in Each Interrupt Control Mode (1)
Figure 5.4 Block Diagram of Interrupt Control Operation
Interrupt Mask Bits
I
0
1
*
Interrupt
control
mode 0
Interrupt control mode 2
IPR
mask control
acceptance
Interrupt
control
8-level
I2 to I0
I
Default priority
determination
Selected Interrupts
All interrupts
NMI interrupts
All interrupts
Vector number