h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 147

• Manufacturer Part Number: h8s-2646
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

5.4.5
The H8S/2646 Group is capable of fast word transfer instruction to on-chip memory, and the
program area is provided in on-chip ROM and the stack area in on-chip RAM, enabling high-
speed processing.
Table 5.9 shows interrupt response times - the interval between generation of an interrupt request
and execution of the first instruction in the interrupt handling routine. The execution status
symbols used in table 5.9 are explained in table 5.10.
Table 5.9
Notes: 1. Two states in case of internal interrupt.
No.
1
2
3
4
5
6
Total (using on-chip memory)
Execution Status
Interrupt priority determination *
Number of wait states until executing
instruction ends *
PC, CCR, EXR stack save
Vector fetch
Instruction fetch *
Internal processing *
2. Refers to MULXS and DIVXS instructions.
3. Prefetch after interrupt acceptance and interrupt handling routine prefetch.
4. Internal processing after interrupt acceptance and internal processing after vector fetch.
5. Not available in the H8S/2646 Group.
Interrupt Response Times
Interrupt Response Times
2
3
4
1
INTM1 = 0
3
1 to
(19+2·S
2·S
S
2·S
2
11 to 31
I
K
I
Normal Mode *
I
)
Rev. 5.00 Sep 22, 2005 page 121 of 1136
INTM1 = 1
3
1 to
(19+2·S
3·S
S
2·S
2
12 to 32
I
K
I
5
I
)
Section 5 Interrupt Controller
INTM1 = 0
3
1 to
(19+2·S
2·S
2·S
2·S
2
12 to 32
K
I
I
Advanced Mode
REJ09B0257-0500
I
)
INTM1 = 1
3
1 to
(19+2·S
3·S
2·S
2·S
2
13 to 33
K
I
I
I
)