APPENDIX A LIST OF I/O REGISTERS
AP-A-18
Seiko Epson Corporation
S1C33L26 TECHNICAL MANUAL
Register name Address
Bit
Name
Function
Setting
Init. R/W
Remarks
FPT4–5
Interrupt
Chattering
Filter Control
Register
(GPIO_FPT45_
CHAT)
0x300346
(8 bits)
D7
–
reserved
–
–
–
0 when being read.
D6–4 SCTP5[2:0] FPT5 chattering filter time select
SCTP5[2:0]
Filter sampling
time
0x0 R/W
0x7
0x6
0x5
0x4
0x3
0x2
0x1
0x0
64/f
PCLK2
32/f
PCLK2
16/f
PCLK2
8/f
PCLK2
4/f
PCLK2
2/f
PCLK2
1/f
PCLK2
None
D3
–
reserved
–
–
–
0 when being read.
D2–0 SCTP4[2:0] FPT4 chattering filter time select
SCTP4[2:0]
Filter sampling
time
0x0 R/W
0x7
0x6
0x5
0x4
0x3
0x2
0x1
0x0
64/f
PCLK2
32/f
PCLK2
16/f
PCLK2
8/f
PCLK2
4/f
PCLK2
2/f
PCLK2
1/f
PCLK2
None
FPT6–7
Interrupt
Chattering
Filter Control
Register
(GPIO_FPT67_
CHAT)
0x300347
(8 bits)
D7
–
reserved
–
–
–
0 when being read.
D6–4 SCTP7[2:0] FPT7 chattering filter time select
SCTP7[2:0]
Filter sampling
time
0x0 R/W
0x7
0x6
0x5
0x4
0x3
0x2
0x1
0x0
64/f
PCLK2
32/f
PCLK2
16/f
PCLK2
8/f
PCLK2
4/f
PCLK2
2/f
PCLK2
1/f
PCLK2
None
D3
–
reserved
–
–
–
0 when being read.
D2–0 SCTP6[2:0] FPT6 chattering filter time select
SCTP6[2:0]
Filter sampling
time
0x0 R/W
0x7
0x6
0x5
0x4
0x3
0x2
0x1
0x0
64/f
PCLK2
32/f
PCLK2
16/f
PCLK2
8/f
PCLK2
4/f
PCLK2
2/f
PCLK2
1/f
PCLK2
None
FPT8–9
Interrupt
Chattering
Filter Control
Register
(GPIO_FPT89_
CHAT)
0x300348
(8 bits)
D7
–
reserved
–
–
–
0 when being read.
D6–4 SCTP9[2:0] FPT9 chattering filter time select
SCTP9[2:0]
Filter sampling
time
0x0 R/W
0x7
0x6
0x5
0x4
0x3
0x2
0x1
0x0
64/f
PCLK2
32/f
PCLK2
16/f
PCLK2
8/f
PCLK2
4/f
PCLK2
2/f
PCLK2
1/f
PCLK2
None
D3
–
reserved
–
–
–
0 when being read.
D2–0 SCTP8[2:0] FPT8 chattering filter time select
SCTP8[2:0]
Filter sampling
time
0x0 R/W
0x7
0x6
0x5
0x4
0x3
0x2
0x1
0x0
64/f
PCLK2
32/f
PCLK2
16/f
PCLK2
8/f
PCLK2
4/f
PCLK2
2/f
PCLK2
1/f
PCLK2
None