M30622SAFP MITSUBISHI [Mitsubishi Electric Semiconductor], M30622SAFP Datasheet - Page 54
M30622SAFP
Manufacturer Part Number
M30622SAFP
Description
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Manufacturer
MITSUBISHI [Mitsubishi Electric Semiconductor]
Datasheet
1.M30622SAFP.pdf
(274 pages)
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Interrupt
54
Table 1.11.5. Time required for executing the interrupt sequence
Note 1: Add 2 cycles in the case of a DBC interrupt; add 1 cycle in the case either of an address coincidence
Note 2: Locate an interrupt vector address in an even address, if possible.
Figure 1.11.5. Time required for executing the interrupt sequence
Table 1.11.6. Relationship between interrupts without interrupt priority levels and IPL
Interrupt vector address
Variation of IPL when Interrupt Request is Accepted
BCLK
R
Address bus
Data bus
W
Time (a) is dependent on the instruction under execution. Thirty cycles is the maximum required for the
DIVX instruction (without wait).
Time (b) is as shown in Table 1.11.5.
If an interrupt request is accepted, the interrupt priority level of the accepted interrupt is set in the IPL.
If an interrupt request, that does not have an interrupt priority level, is accepted, one of the values shown
in Table 1.11.6 is set in the IPL.
Watchdog timer, NMI
Reset
Other
Odd (Note 2)
Odd (Note 2)
interrupt or of a single-step interrupt.
Interrupt sources without priority levels
Even
Even
The indeterminate segment is dependent on the queue buffer.
If the queue buffer is ready to take an instruction, a read cycle occurs.
1
_______
Address
0000
information
2
Interrupt
Stack pointer (SP) value
3
4
Even
Even
Odd
Odd
________
Indeterminate
Indeterminate
5
Indeterminate
6
7
16-Bit bus, without wait
8
18 cycles (Note 1)
19 cycles (Note 1)
19 cycles (Note 1)
20 cycles (Note 1)
SP-2
9
contents
SP-2
10
SP-4
11
contents
Value set in the IPL
SP-4
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
12
Not changed
13
vec
contents
vec
7
0
8-Bit bus, without wait
14
20 cycles (Note 1)
20 cycles (Note 1)
20 cycles (Note 1)
20 cycles (Note 1)
vec+2
M16C / 62A Group
15
contents
Mitsubishi microcomputers
vec+2
16
17
PC
18
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