24 I/O PORTS (GPIO)
24-6
Seiko Epson Corporation
S1C33L26 TECHNICAL MANUAL
SIETC
SEPTC
SFGPC
P94
PA4
PB4
P72
SPPTC
SCTPC[2:0]
SPTC[1:0]
Chattering
filter
Trigger
mode/polarity
control
Port input
interrupt 3
request
(to ITC)
Port input
interrupt 3
FPTC
SIETD
SEPTD
SFGPD
P95
PA5
PB5
P73
SPPTD
SCTPD[2:0]
SPTD[1:0]
Chattering
filter
Trigger
mode/polarity
control
FPTD
SIETE
SEPTE
SFGPE
P96
PA6
PB6
P74
SPPTE
SCTPE[2:0]
SPTE[1:0]
Chattering
filter
Trigger
mode/polarity
control
FPTE
SIETF
SEPTF
SFGPF
P97
P60
PB7
P75
SPPTF
SCTPF[2:0]
SPTF[1:0]
Chattering
filter
Trigger
mode/polarity
control
FPTF
ANFEN
Noise
filter
ANFEN
Noise
filter
ANFEN
Noise
filter
ANFEN
Noise
filter
5.1 Port Input Interrupt Circuit Configuration
Figure 24.
Interrupt port selection
Each port input interrupt system uses four ports to generate interrupts. Select the ports using SPT
n
[1:0]/GPIO_
FPT
nn
_SEL register (
n
= 0 to F,
nn
= 03, 47, 8B, or CF).
5.1 Selecting Ports Used For Port Interrupt 0
Table 24.
SPT
n
[1:0] setting
FPT0 (SPT0[1:0])
FPT1 (SPT1[1:0])
FPT2 (SPT2[1:0])
FPT3 (SPT3[1:0])
0x3
P30
P31
P32
P33
0x2
P10
P11
P12
P13
0x1
P50
P51
P52
P53
0x0 (default)
P00
P01
P02
P03
5.2 Selecting Ports Used For Port Interrupt 1
Table 24.
SPT
n
[1:0] setting
FPT4 (SPT4[1:0])
FPT5 (SPT5[1:0])
FPT6 (SPT6[1:0])
FPT7 (SPT7[1:0])
0x3
PA0
PA1
PA2
PA3
0x2
P14
P15
P16
P17
0x1
PC4
PC5
PC6
PC7
0x0 (default)
P04
P05
P06
P07
5.3 Selecting Ports Used For Port Interrupt 2
Table 24.
SPT
n
[1:0] setting
FPT8 (SPT8[1:0])
FPT9 (SPT9[1:0])
FPTA (SPTA[1:0])
FPTB (SPTB[1:0])
0x3
P90
P91
P92
P93
0x2
P80
P81
P82
P83
0x1
PB0
PB1
PB2
PB3
0x0 (default)
P40
P41
P42
P71
5.4 Selecting Ports Used For Port Interrupt 3
Table 24.
SPT
n
[1:0] setting
FPTC (SPTC[1:0])
FPTD (SPTD[1:0])
FPTE (SPTE[1:0])
FPTF (SPTF[1:0])
0x3
P94
P95
P96
P97
0x2
PA4
PA5
PA6
P60
0x1
PB4
PB5
PB6
PB7
0x0 (default)
P72
P73
P74
P75