HD6412332 RENESAS [Renesas Technology Corp], HD6412332 Datasheet - Page 152

• Manufacturer Part Number: HD6412332
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

5.4.5
The chip 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
No.
1
2
3
4
5
6
Total (using on-chip memory)
Notes: 1. Two states in case of internal interrupt.
Table 5.10 Number of States in Interrupt Handling Routine Execution
Symbol
Instruction fetch
Branch address read
Stack manipulation
Legend:
m: Number of wait states in an external device access.
Rev.4.00 Sep. 07, 2007 Page 122 of 1210
REJ09B0245-0400
Item
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.
Interrupt Response Times
Interrupt Response Times
2
3
4
S
S
S
I
J
K
Internal
Memory
1
1
2-State
Access
4
INTM1 = 0
3
1 to (19 + 2·S
2·S
2·S
2·S
2
12 to 32
8-Bit Bus
K
I
I
Object of Access
3-State
Access
6 + 2m
External Device
I
)
Advanced Mode
2-State
Access
2
INTM1 = 1
3
1 to (19 + 2·S
3·S
2·S
2·S
2
13 to 33
K
I
I
16-Bit Bus
3-State
Access
3 + m
I
)