HD6432621 Hitachi, HD6432621 Datasheet - Page 160
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HD6432621
Manufacturer Part Number
HD6432621
Description
(HD64F262x Series) 16-Bit Microcomputer
Manufacturer
Hitachi
Datasheet
1.HD6432621.pdf
(1069 pages)
- Current page: 160 of 1069
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5.4.5
The H8S/2626 Series and H8S/2623 Series are capable of fast word transfer to on-chip memory,
and have the program area 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.
116
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/2626 Series or H8S/2623 Series.
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
)
INTM1 = 1
3
1 to
(19+2·S
3·S
S
2·S
2
12 to 32
I
K
I
5
I
)
INTM1 = 0
3
1 to
(19+2·S
2·S
2·S
2·S
2
12 to 32
K
I
I
Advanced Mode
I
)
INTM1 = 1
3
1 to
(19+2·S
3·S
2·S
2·S
2
13 to 33
K
I
I
I
)
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