Specifications
18 EPSON S1C6P466 TECHNICAL MANUAL
CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (Memory Map)
Table 4.1.1 (e) I/O memory map (FFC8H–FFF7H)
Address Comment
D3 D2
Register
D1 D0 Name Init
∗1
10
PTD03
PTD02
PTD01
PTD00
0
0
0
0
MSB
Programmable timer 0 data (low-order 4 bits)
LSB
R
FFC8H
PTD03 PTD02 PTD01 PTD00
PTD07
PTD06
PTD05
PTD04
0
0
0
0
MSB
Programmable timer 0 data (high-order 4 bits)
LSB
R
FFC9H
PTD07 PTD06 PTD05 PTD04
PTD13
PTD12
PTD11
PTD10
0
0
0
0
MSB
Programmable timer 1 data (low-order 4 bits)
LSB
R
FFCAH
PTD13 PTD12 PTD11 PTD10
PTD17
PTD16
PTD15
PTD14
0
0
0
0
MSB
Programmable timer 1 data (high-order 4 bits)
LSB
R
FFCBH
PTD17 PTD16 PTD15 PTD14
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)
FFF6H
IT3 IT2 IT1 IT0
R/W
IT3
IT2
IT1
IT0
0
0
0
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
00IPT1 IPT0
R R/W
0
∗
3
0
∗
3
IPT1
IPT0
–
∗
2
–
∗
2
0
0
(R)
Yes
(W)
Reset
(R)
No
(W)
Invalid
Unused
Unused
Interrupt factor flag (Programmable timer 1)
Interrupt factor flag (Programmable timer 0)
FFF7H
00ISW1 ISW10
R R/W
0
∗
3
0
∗
3
ISW1
ISW10
–
∗
2
–
∗
2
0
0
(R)
Yes
(W)
Reset
(R)
No
(W)
Invalid
Unused
Unused
Interrupt factor flag (Stopwatch timer 1 Hz)
Interrupt factor flag (Stopwatch timer 10 Hz)
FFF3H
000ISIF
R R/W
0
∗
3
0
∗
3
0
∗
3
ISIF
–
∗
2
–
∗
2
–
∗
2
0
(R)
Yes
(W)
Reset
(R)
No
(W)
Invalid
Unused
Unused
Unused
Interrupt factor flag (Serial I/F)
FFF4H
000IK0
R R/W
0
∗
3
0
∗
3
0
∗
3
IK0
–
∗
2
–
∗
2
–
∗
2
0
(R)
Yes
(W)
Reset
(R)
No
(W)
Invalid
Unused
Unused
Unused
Interrupt factor flag (K00–K03)
FFF5H
000IK1
R R/W
0
∗
3
0
∗
3
0
∗
3
IK1
–
∗
2
–
∗
2
–
∗
2
0
(R)
Yes
(W)
Reset
(R)
No
(W)
Invalid
Unused
Unused
Unused
Interrupt factor flag (K10–K13)