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EPSON
S1C6P466 TECHNICAL MANUAL
CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (Interrupt and HALT)
Table 4.14.4.1(b) Control bits of interrupt (2)
Address
Comment
D3
D2
Register
D1
D0
Name
Init *1
10
FFF6H
IT3
IT2
IT1
IT0
R/W
IT3
IT2
IT1
IT0
0
(R)
Yes
(W)
Reset
(R)
No
(W)
Invalid
Interrupt factor flag (Clock timer 1 Hz)
Interrupt factor flag (Clock timer 2 Hz)
Interrupt factor flag (Clock timer 8 Hz)
Interrupt factor flag (Clock timer 32 Hz)
FFF2H
00
IPT1
IPT0
R
R/W
0 3
IPT1
IPT0
– 2
0
(R)
Yes
(W)
Reset
(R)
No
(W)
Invalid
Unused
Interrupt factor flag (Programmable timer 1)
Interrupt factor flag (Programmable timer 0)
FFF7H
00
ISW1
ISW10
R
R/W
0 3
ISW1
ISW10
– 2
0
(R)
Yes
(W)
Reset
(R)
No
(W)
Invalid
Unused
Interrupt factor flag (Stopwatch timer 1 Hz)
Interrupt factor flag (Stopwatch timer 10 Hz)
FFF3H
000
ISIF
R
R/W
0 3
ISIF
– 2
0
(R)
Yes
(W)
Reset
(R)
No
(W)
Invalid
Unused
Interrupt factor flag (Serial I/F)
FFF4H
000
IK0
R
R/W
0 3
IK0
– 2
0
(R)
Yes
(W)
Reset
(R)
No
(W)
Invalid
Unused
Interrupt factor flag (K00–K03)
FFF5H
000
IK1
R
R/W
0 3
IK1
– 2
0
(R)
Yes
(W)
Reset
(R)
No
(W)
Invalid
Unused
Interrupt factor flag (K10–K13)
*1 Initial value at initial reset
*2 Not set in the circuit
*3 Constantly "0" when being read
EIPT1, EIPT0: Interrupt mask registers (FFE2HD1, D0)
IPT1, IPT0: Interrupt factor flags (FFF2HD1, D0)
Refer to Section 4.10, "Programmable Timer".
EISIF: Interrupt mask register (FFE3HD0)
ISIF: Interrupt factor flag (FFF3HD0)
Refer to Section 4.11, "Serial Interface".
KCP03–KCP00, KCP13–KCP10: Input comparison registers (FF22H, FF26H)
SIK03–SIK00, SIK13–SIK10: Interrupt selection registers (FF20H, FF24H)
EIK0, EIK1: Interrupt mask registers (FFE4HD0, FFE5HD0)
IK0, IK1: Interrupt factor flags (FFF4HD0, FFF5HD0)
Refer to Section 4.4, "Input Ports".
EIT3–EIT0: Interrupt mask registers (FFE6H)
IT3–IT0: Interrupt factor flags (FFF6H)
Refer to Section 4.8, "Clock Timer".
EISW1, EISW10: Interrupt mask registers (FFE7HD1, D0)
ISW1, ISW10: Interrupt factor flags (FFF7HD1, D0)
Refer to Section 4.9, "Stopwatch Timer".