M30622 Mitsubishi, M30622 Datasheet - Page 60

• Manufacturer Part Number: M30622
• Description: SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
• Manufacturer: Mitsubishi

Interrupt
Table 1.14.5. 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 1.14.5. Time required for executing the interrupt sequence
Table 1.14.6. Relationship between interrupts without interrupt priority levels and IPL
Interrupt vector address
Variation of IPL when Interrupt Request is Accepted
BCLK
Address bus
Data bus
R
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 1.14.5.
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 1.14.6 is set in the IPL.
Odd (Note 2)
Odd (Note 2)
Watchdog timer, NMI
Reset
Other
Tentative Specifications REV.A
interrupt or of a single-step interrupt.
S
Even
Even
pecifications in this manual are tentative and subject to change.
Interrupt sources without priority levels
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
60
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
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
SP-4
12
Value set in the IPL
Not changed
13
vec
contents
vec
8-Bit bus, without wait
Mitsubishi microcomputers
14
7
0
20 cycles (Note 1)
20 cycles (Note 1)
20 cycles (Note 1)
20 cycles (Note 1)
vec+2
M16C / 62T Group
15
contents
vec+2
16
17
PC
18