H8S-2350 RENESAS [Renesas Technology Corp], H8S-2350 Datasheet - Page 142

• Manufacturer Part Number: H8S-2350
• Description: 16-Bit Single-Chip Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 5 Interrupt Controller
(3) Default Priority Determination
When an interrupt is selected by 8-level control, its priority is determined and a vector number is
generated.
If the same value is set for IPR, 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 5.8 shows operations and control signal functions in each interrupt control mode.
Table 5.8
Legend:
X : No operation. (All interrupts enabled)
IM : Used as interrupt mask bit
PR : Sets priority.
— : Not used.
Notes: 1. Set to 1 when interrupt is accepted.
Rev. 3.00 Sep 15, 2006 page 108 of 988
REJ09B0330-0300
Interrupt
Control
Mode
: Interrupt operation control performed
0
2
2. Keep the initial setting.
INTM1
Operations and Control Signal Functions in Each Interrupt Control Mode
0
1
Setting
INTM0
0
0
Interrupt Acceptance
X
Control
— *
IM
I
1
X
8-Level Control
I2 to I0
IM
—
— *
IPR
PR
2
Determination
Priority
Default
(Trace)
—
T
T