h8s-2138 Renesas Electronics Corporation., h8s-2138 Datasheet - Page 177

• Manufacturer Part Number: h8s-2138
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Table 5.6
Legend:
*: Don’t care
Default Priority Determination: The priority is determined for the selected interrupt, and a
vector number is generated.
If the same value is set for ICR, acceptance of multiple interrupts is enabled, and so only the
interrupt source with the highest priority according to the preset default priorities is selected and
has a vector number generated.
Interrupt sources with a lower priority than the accepted interrupt source are held pending.
Table 5.7 shows operations and control signal functions in each interrupt control mode.
Table 5.7
Legend:
O:
IM: Used as interrupt mask bit
PR: Sets priority
—: Not used
Interrupt Control Mode
0
1
Control Mode
Interrupt
Interrupt operation control performed
0
1
Interrupts Selected in Each Interrupt Control Mode
Operations and Control Signal Functions in Each Interrupt Control Mode
INTM1
0
Setting
INTM0
0
1
Interrupt Mask Bits
0
1
0
1
I
O
O
Interrupt Acceptance Control
*
*
*
0
1
UI
3-Level Control
IM
IM
I
Selected Interrupts
All interrupts (control level 1 has priority)
NMI and address break interrupts
All interrupts (control level 1 has priority)
NMI, address break and control level 1
interrupts
NMI and address break interrupts
IM
—
Rev. 4.00 Jun 06, 2006 page 123 of 1004
UI
ICR
PR
PR
Section 5 Interrupt Controller
Default Priority
Determination
O
O
REJ09B0301-0400
(Trace)
—
—
T