h8s-2172 Renesas Electronics Corporation., h8s-2172 Datasheet - Page 102

• Manufacturer Part Number: h8s-2172
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family H8s-2100 Series
• Manufacturer: Renesas Electronics Corporation.

5.4.2
Internal interrupts issued from the on-chip peripheral modules have the following features:
• For each on-chip peripheral module there are flags that indicate the interrupt request status,
• The control level for each interrupt can be set by ICR.
5.5
Table 5.3 lists interrupt exception handling sources, vector addresses, and interrupt priorities. For
default priorities, the lower the vector number, the higher the priority. Modules set at the same
priority will conform to their default priorities. Priorities within a module are fixed.
An interrupt control level can be specified for a module to which an ICR bit is assigned. Interrupt
requests from modules that are set to interrupt control level 1 (priority) by the ICR bit setting and
the I and UI bits in CCR are given priority and processed before interrupt requests from modules
that are set to interrupt control level 0 (no priority).
Table 5.3
Rev. 2.00, 03/04, page 70 of 534
Origin of
Interrupt
Source
External pin

WDT
Refresh timer


and enable bits that individually select enabling or disabling of these interrupts. When the
enable bit for a particular interrupt source is set to 1, an interrupt request is sent to the interrupt
controller.
Internal Interrupts
Interrupt Exception Handling Vector Table
Interrupt Sources, Vector Addresses, and Interrupt Priorities
Name
NMI
IRQ0
IRQ1
IRQ2
IRQ3
IRQ4
IRQ5
IRQ6
IRQ7
Reserved for system use
WOVI0 (Interval timer)
CMI (Compare match)
Address break
Reserved for system use
Vector
Number Vector Address ICR
7
16
17
18
19
20
21
22
23
24
25
26
27
28
29
H'00001C
H'000040
H'000044
H'000048
H'00004C
H'000050
H'000054
H'000058
H'00005C
H'000060
H'000064
H'000068
H'00006C
H'000070
H'000074

ICRA7
ICRA6
ICRA5
ICRA4
ICRA3

ICRA1
ICRA0


Priority
High
Low