APPENDIX A LIST OF I/O REGISTERS
S1C33L26 TECHNICAL MANUAL
Seiko Epson Corporation
AP-A-19
Register name Address
Bit
Name
Function
Setting
Init. R/W
Remarks
FPTA–B
Interrupt
Chattering
Filter Control
Register
(GPIO_FPTAB_
CHAT)
0x300349
(8 bits)
D7
–
reserved
–
–
–
0 when being read.
D6–4 SCTPB[2:0] FPTB chattering filter time select
SCTPB[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 SCTPA[2:0] FPTA chattering filter time select
SCTPA[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
FPTC–D
Interrupt
Chattering
Filter Control
Register
(GPIO_FPTCD_
CHAT)
0x30034a
(8 bits)
D7
–
reserved
–
–
–
0 when being read.
D6–4 SCTPD[2:0] FPTD chattering filter time select
SCTPD[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 SCTPC[2:0] FPTC chattering filter time select
SCTPC[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
FPTE–F
Interrupt
Chattering
Filter Control
Register
(GPIO_FPTEF_
CHAT)
0x30034b
(8 bits)
D7
–
reserved
–
–
–
0 when being read.
D6–4 SCTPF[2:0] FPTF chattering filter time select
SCTPF[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 SCTPE[2:0] FPTE chattering filter time select
SCTPE[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