h8s-2158 Renesas Electronics Corporation., h8s-2158 Datasheet - Page 143
h8s-2158
Manufacturer Part Number
h8s-2158
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2158.pdf
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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 5.5 shows the interrupts that can be accepted in each interrupt control mode.
Table 5.5
Legend:
Note:
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 5.6 shows operations and control signal functions in each interrupt control mode.
Interrupt
Control Mode
0
1
: Don’t care
* Interrupt control level 1 has priority.
Interrupts Acceptable in Each Interrupt Control Mode
I Bit
0
1
0
1
UI Bit
0
1
NMI, Address
Break
O
O
O
O
O
KIN, WUE,
DTI
O
X
O
X
X
Rev. 3.00 Jan 25, 2006 page 91 of 872
Peripheral Module Interrupt
O (All interrupts)
X
O (All interrupts)
O (Interrupts with ICR = 1)
X
Section 5 Interrupt Controller
REJ09B0286-0300
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