h8s-2172 Renesas Electronics Corporation., h8s-2172 Datasheet - Page 112

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

5.6.4
Table 5.7 shows interrupt response times − the intervals between generation of an interrupt request
and execution of the first instruction in the interrupt handling routine. The execution status
symbols used in table 5.7 are explained in table 5.8.
Table 5.7
Notes: 1. Two states in case of internal interrupt.
Table 5.8
[Legend]
m:
Rev. 2.00, 03/04, page 80 of 534
No.
1
2
3
4
5
6
Symbol
Instruction fetch S
Branch address read S
Stack manipulation S
Number of wait states in external device access.
Execution Status
instruction ends*
Internal processing*
Interrupt priority determination*
Number of wait states until executing
PC, CCR stack save
Vector fetch
Instruction fetch*
2. Refers to MULXS and DIVXS instructions.
3. Prefetch after interrupt acceptance and prefetch of interrupt handling routine.
4. Internal processing after interrupt acceptance and internal processing after vector fetch.
Interrupt Response Times
Total (using on-chip memory)
Interrupt Response Times
Number of States in Interrupt Handling Routine Execution Status
I
K
J
2
3
4
Internal
Memory
1
1
2-State
Access
4
Advanced Mode
3
1 to (19 + 2·S
2·S
2·S
2·S
2
12 to 32
K
I
I
Object of Access
8-Bit Bus
3-State
Access
6 + 2m
External Device
I
)
2-State
Access
2
16-Bit Bus
3-State
Access
3 + m