Specifications
S1C6P466 TECHNICAL MANUAL EPSON 93
CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (Interrupt and HALT)
4.14.4 I/O memory of interrupt
Tables 4.14.4.1(a) and (b) show the I/O addresses and the control bits for controlling interrupts.
Table 4.14.4.1(a) Control bits of interrupt (1)
Address Comment
D3 D2
Register
D1 D0 Name Init
∗1
10
FF20H
SIK03 SIK02 SIK01 SIK00
R/W
SIK03
SIK02
SIK01
SIK00
0
0
0
0
Enable
Enable
Enable
Enable
Disable
Disable
Disable
Disable
K00–K03 interrupt selection register
FF22H
KCP03 KCP02 KCP01 KCP00
R/W
KCP03
KCP02
KCP01
KCP00
1
1
1
1
K00–K03 input comparison register
FF24H
SIK13 SIK12 SIK11 SIK10
R/W
SIK13
SIK12
SIK11
SIK10
0
0
0
0
Enable
Enable
Enable
Enable
Disable
Disable
Disable
Disable
K10–K13 interrupt selection register
FF26H
KCP13 KCP12 KCP11 KCP10
R/W
KCP13
KCP12
KCP11
KCP10
1
1
1
1
K10–K13 input comparison register
FFE6H
EIT3 EIT2 EIT1 EIT0
R/W
EIT3
EIT2
EIT1
EIT0
0
0
0
0
Enable
Enable
Enable
Enable
Mask
Mask
Mask
Mask
Interrupt mask register (Clock timer 1 Hz)
Interrupt mask register (Clock timer 2 Hz)
Interrupt mask register (Clock timer 8 Hz)
Interrupt mask register (Clock timer 32 Hz)
FFE2H
00EIPT1 EIPT0
R R/W
0
∗
3
0
∗
3
EIPT1
EIPT0
–
∗
2
–
∗
2
0
0
Enable
Enable
Mask
Mask
Unused
Unused
Interrupt mask register (Programmable timer 1)
Interrupt mask register (Programmable timer 0)
FFE7H
00EISW1 EISW10
R R/W
0
∗
3
0
∗
3
EISW1
EISW10
–
∗
2
–
∗
2
0
0
Enable
Enable
Mask
Mask
Unused
Unused
Interrupt mask register (Stopwatch timer 1 Hz)
Interrupt mask register (Stopwatch timer 10 Hz)
FFE3H
000EISIF
R R/W
0
∗
3
0
∗
3
0
∗
3
EISIF
–
∗
2
–
∗
2
–
∗
2
0 Enable Mask
Unused
Unused
Unused
Interrupt mask register (Serial I/F)
FFE4H
000EIK0
R R/W
0
∗
3
0
∗
3
0
∗
3
EIK0
–
∗
2
–
∗
2
–
∗
2
0 Enable Mask
Unused
Unused
Unused
Interrupt mask register (K00–K03)
FFE5H
000EIK1
R R/W
0
∗
3
0
∗
3
0
∗
3
EIK1
–
∗
2
–
∗
2
–
∗
2
0 Enable Mask
Unused
Unused
Unused
Interrupt mask register (K10–K13)
*1 Initial value at initial reset
*2 Not set in the circuit
*3 Constantly "0" when being read