Specifications

S1C6S2N7 TECHNICAL SOFTWARE EPSON II-61
CHAPTER 3: PERIPHERAL CIRCUITS (Interrupt and Halt)
If the EI state is set without resetting the interrupt factor
flag after generating the input interrupt (K00–K03), the same
interrupt is generated once more. (See Figure 3.10.7.)
The interrupt factor flag must always be read (reset) in the
DI state (interrupt flag [I] = "0"). There may be an operation
error if read in the EI state.
The timer interrupt factor flags (IT32, IT8, IT2) and the
stopwatch interrupt factor flags (ISW1, ISW0) are set
whether the corresponding interrupt mask register is set or
not.
The input interrupt factor flag (IK0) is allowed to be set in
the condition when the corresponding interrupt mask regis-
ter (EIK00–EIK03) is set to "1" (interrupt is enabled). (See
Figure 3.10.7.)
Table 3.10.2 shows the interrupt vector map.
Table 3.10.2
Interrupt vector map
Step Interrupt Vector
Initial reset
Clock timer interrupt (TINT)
Stopwatch interrupt (SWINT)
SWINT + TINT
Input (K00–K03) interrupt (KINT)
KINT + TINT
KINT + SWINT
KINT + SWINT + TINT
Motor driver interrupt (MDINT)
MDINT + TINT
MDINT + SWINT
MDINT + SWINT + TINT
MDINT + KINT
MDINT + KINT + TINT
MDINT + KINT + SWINT
MDINT + KINT + SWINT + TINT
Page
00H
01H
02H
03H
04H
05H
06H
07H
08H
09H
0AH
0BH
0CH
0DH
0EH
0FH
1
Addesses (start address of interrupt processing routines) to
jump to are written into the addresses available for interrupt
vector allocation.