aPPenDiX a liST OF i/O ReGiSTeRS
aP-a-2
Seiko epson Corporation
S1C63003/004/008/016 TeChniCal Manual
(Rev. 1.1)
Address
Register name R/W Default
Setting/data
Function
FF14H
(
*
6)
D3 0 (
*
3)
R
– (
*
2)
–
Unused
D2
SiFCKS2
R/W
0
7 f
3
/4
4 PT1
1 f
1
Serial I/F clock frequency selection
(f
1
= f
OSC1
, f
3
= f
OSC3
)
D1
SiFCKS1
R/W
0
6 f
3
/2
3 f
1
/4
0 Off/
External
D0
SiFCKS0
R/W
0
5 f
3
2 f
1
/2
FF15H D3 0 (
*
3)
R
– (
*
2)
–
Unused
D2
RFCKS2
R/W
0
7 f
3
/4
4 PT1 (
*
6) 1 f
1
R/F converter clock frequency selection
(f
1
= f
OSC1
, f
3
= f
OSC3
)
D1
RFCKS1
R/W
0
6 f
3
/2
3 f
1
/4
0 Off
D0
RFCKS0
R/W
0
5 f
3
2 f
1
/2
FF16H D3
MDCKe (
*
5)
R/W
0
1 Enable
0 Disable
Integer multiplier clock enable
D2
SGCKe
R/W
0
1 Enable
0 Disable
Sound generator clock enable
D1
SWCKe
R/W
0
1 Enable
0 Disable
Stopwatch timer clock enable
D0
RTCKe
R/W
0
1 Enable
0 Disable
Clock timer clock enable
FF18H D3
PTPS03
R/W
0
F f
3
B f
3
/16
7 f
1
3 f
1
/32
Programmable timer 0 count clock frequency
selection (f
1
= f
OSC1
, f
3
= f
OSC3
)
D2
PTPS02
R/W
0
E f
3
/2
A f
3
/32
6 f
1
/2
2 f
1
/64
D1
PTPS01
R/W
0
D f
3
/4
9 f
3
/64
5 f
1
/4
1 f
1
/256
D0
PTPS00
R/W
0
C f
3
/8
8 f
3
/256 4 f
1
/16
0 Off
FF19H
(
*
6)
D3
PTPS13
R/W
0
F f
3
B f
3
/16
7 f
1
3 f
1
/32
Programmable timer 1 count clock frequency
selection (f
1
= f
OSC1
, f
3
= f
OSC3
)
D2
PTPS12
R/W
0
E f
3
/2
A f
3
/32
6 f
1
/2
2 f
1
/64
D1
PTPS11
R/W
0
D f
3
/4
9 f
3
/64
5 f
1
/4
1 f
1
/256
D0
PTPS10
R/W
0
C f
3
/8
8 f
3
/256 4 f
1
/16
0 Off
FF1AH
(
*
6)
D3
PTPS23
R/W
0
F f
3
B f
3
/16
7 f
1
3 f
1
/32
Programmable timer 2 count clock frequency
selection (f
1
= f
OSC1
, f
3
= f
OSC3
)
D2
PTPS22
R/W
0
E f
3
/2
A f
3
/32
6 f
1
/2
2 f
1
/64
D1
PTPS21
R/W
0
D f
3
/4
9 f
3
/64
5 f
1
/4
1 f
1
/256
D0
PTPS20
R/W
0
C f
3
/8
8 f
3
/256 4 f
1
/16
0 Off
FF1BH
(
*
4)
D3
PTPS33
R/W
0
F f
3
B f
3
/16
7 f
1
3 f
1
/32
Programmable timer 3 count clock frequency
selection (f
1
= f
OSC1
, f
3
= f
OSC3
)
D2
PTPS32
R/W
0
E f
3
/2
A f
3
/32
6 f
1
/2
2 f
1
/64
D1
PTPS31
R/W
0
D f
3
/4
9 f
3
/64
5 f
1
/4
1 f
1
/256
D0
PTPS30
R/W
0
C f
3
/8
8 f
3
/256 4 f
1
/16
0 Off
FF20h–FF3Fh
i/O Ports
Address
Register name R/W Default
Setting/data
Function
FF20H D3
P03
R/W
1
1 High
0 Low
P03 I/O port data
D2
P02
R/W
1
1 High
0 Low
P02 I/O port data
D1
P01
R/W
1
1 High
0 Low
P01 I/O port data
D0
P00
R/W
1
1 High
0 Low
P00 I/O port data
FF21H D3
iOC03
R/W
0
1 Output
0 Input
P03 I/O control register
D2
iOC02
R/W
0
1 Output
0 Input
P02 I/O control register
D1
iOC01
R/W
0
1 Output
0 Input
P01 I/O control register
D0
iOC00
R/W
0
1 Output
0 Input
P00 I/O control register
FF22H D3
Pul03
R/W
1
1 Enable
0 Disable
P03 pull-down control register
D2
Pul02
R/W
1
1 Enable
0 Disable
P02 pull-down control register
D1
Pul01
R/W
1
1 Enable
0 Disable
P01 pull-down control register
D0
Pul00
R/W
1
1 Enable
0 Disable
P00 pull-down control register
FF23H D3
SMT03
R/W
1
1 Schmitt
0 CMOS
P03 input I/F level select register
D2
SMT02
R/W
1
1 Schmitt
0 CMOS
P02 input I/F level select register
D1
SMT01
R/W
1
1 Schmitt
0 CMOS
P01 input I/F level select register
D0
SMT00
R/W
1
1 Schmitt
0 CMOS
P00 input I/F level select register
FF24H D3
P13
R/W
1
1 High
0 Low
P13 I/O port data
D2
P12
R/W
1
1 High
0 Low
P12 I/O port data
D1
P11
R/W
1
1 High
0 Low
P11 I/O port data
D0
P10
R/W
1
1 High
0 Low
P10 I/O port data
FF25H D3
iOC13
R/W
0
1 Output
0 Input
P13 I/O control register
D2
iOC12
R/W
0
1 Output
0 Input
P12 I/O control register
D1
iOC11
R/W
0
1 Output
0 Input
P11 I/O control register
D0
iOC10
R/W
0
1 Output
0 Input
P10 I/O control register
FF26H D3
Pul13
R/W
1
1 Enable
0 Disable
P13 pull-down control register
D2
Pul12
R/W
1
1 Enable
0 Disable
P12 pull-down control register
D1
Pul11
R/W
1
1 Enable
0 Disable
P11 pull-down control register
D0
Pul10
R/W
1
1 Enable
0 Disable
P10 pull-down control register
FF27H D3
SMT13
R/W
1
1 Schmitt
0 CMOS
P13 input I/F level select register
D2
SMT12
R/W
1
1 Schmitt
0 CMOS
P12 input I/F level select register
D1
SMT11
R/W
1
1 Schmitt
0 CMOS
P11 input I/F level select register
D0
SMT10
R/W
1
1 Schmitt
0 CMOS
P10 input I/F level select register