24 I/O PORTS (GPIO)
24-16
Seiko Epson Corporation
S1C33L26 TECHNICAL MANUAL
FPT4–7 Interrupt Polarity Select Register (GPIO_FPT47_POL)
Register name Address
Bit
Name
Function
Setting
Init. R/W
Remarks
FPT4–7
Interrupt Polarity
Select Register
(GPIO_FPT47_
POL)
0x300335
(8 bits)
D7–4 –
reserved
–
–
–
0 when being read.
D3
SPPT7
FPT7 input polarity select
1 High /
↑
0 Low /
↓
1
R/W
D2
SPPT6
FPT6 input polarity select
1 High /
↑
0 Low /
↓
1
R/W
D1
SPPT5
FPT5 input polarity select
1 High /
↑
0 Low /
↓
1
R/W
D0
SPPT4
FPT4 input polarity select
1 High /
↑
0 Low /
↓
1
R/W
D[7:4]
Reserved
D[3:0]
SPPT[7:4]: FPT[7:4] Input Polarity Select Bits
Selects the interrupt trigger level or edge for the ports used for port interrupt 1 (FPT4–FPT7).
1 (R/W): High level/Rising edge (default)
0 (R/W): Low level/Falling edge
See the descriptions of SPPT[3:0]/GPIO_FPT03_POL register.
FPT8–B Interrupt Polarity Select Register (GPIO_FPT8B_POL)
Register name Address
Bit
Name
Function
Setting
Init. R/W
Remarks
FPT8–B
Interrupt Polarity
Select Register
(GPIO_FPT8B_
POL)
0x300336
(8 bits)
D7–4 –
reserved
–
–
–
0 when being read.
D3
SPPTB
FPTB input polarity select
1 High /
↑
0 Low /
↓
1
R/W
D2
SPPTA
FPTA input polarity select
1 High /
↑
0 Low /
↓
1
R/W
D1
SPPT9
FPT9 input polarity select
1 High /
↑
0 Low /
↓
1
R/W
D0
SPPT8
FPT8 input polarity select
1 High /
↑
0 Low /
↓
1
R/W
D[7:4]
Reserved
D[3:0]
SPPT[B:8]: FPT[B:8] Input Polarity Select Bits
Selects the interrupt trigger level or edge for the ports used for port interrupt 2 (FPT8–FPTB).
1 (R/W): High level/Rising edge (default)
0 (R/W): Low level/Falling edge
See the descriptions of SPPT[3:0]/GPIO_FPT03_POL register.
FPTC–F Interrupt Polarity Select Register (GPIO_FPTCF_POL)
Register name Address
Bit
Name
Function
Setting
Init. R/W
Remarks
FPTC–F
Interrupt Polarity
Select Register
(GPIO_FPTCF_
POL)
0x300337
(8 bits)
D7–4 –
reserved
–
–
–
0 when being read.
D3
SPPTF
FPTF input polarity select
1 High /
↑
0 Low /
↓
1
R/W
D2
SPPTE
FPTE input polarity select
1 High /
↑
0 Low /
↓
1
R/W
D1
SPPTD
FPTD input polarity select
1 High /
↑
0 Low /
↓
1
R/W
D0
SPPTC
FPTC input polarity select
1 High /
↑
0 Low /
↓
1
R/W
D[7:4]
Reserved
D[3:0]
SPPT[F:C]: FPT[F:C] Input Polarity Select Bits
Selects the interrupt trigger level or edge for the ports used for port interrupt 3 (FPTC–FPTF).
1 (R/W): High level/Rising edge (default)
0 (R/W): Low level/Falling edge
See the descriptions of SPPT[3:0]/GPIO_FPT03_POL register.
FPT0–3 Interrupt Mode Select Register (GPIO_FPT03_MOD)
Register name Address
Bit
Name
Function
Setting
Init. R/W
Remarks
FPT0–3
Interrupt Mode
Select Register
(GPIO_FPT03_
MOD)
0x300338
(8 bits)
D7–4 –
reserved
–
–
–
0 when being read.
D3
SEPT3
FPT3 interrupt mode select
1 Edge
0 Level
1
R/W
D2
SEPT2
FPT2 interrupt mode select
1 Edge
0 Level
1
R/W
D1
SEPT1
FPT1 interrupt mode select
1 Edge
0 Level
1
R/W
D0
SEPT0
FPT0 interrupt mode select
1 Edge
0 Level
1
R/W
D[7:4]
Reserved