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Register name
Bit
P5INTF
15–8 –
(P5 Port Interrupt
7
Flag Register)
6
5
4
3
2
1
0
P5INTCTL
15
(P5 Port Interrupt
14
Control Register)
13
12
11
10
9
8
7
6
5
4
3
2
1
0
P5CHATEN
15–8 –
(P5 Port Chattering
7
Filter Enable Register)
6
5
4
3
2
1
0
P5MODSEL
15–8 –
(P5 Port Mode Select
7
Register)
6
5
4
3
2
1
0
P5FNCSEL
15–14 P57MUX[1:0]
(P5 Port Function
13–12 P56MUX[1:0]
Select Register)
11–10 P55MUX[1:0]
9–8 P54MUX[1:0]
7–6 P53MUX[1:0]
5–4 P52MUX[1:0]
3–2 P51MUX[1:0]
1–0 P50MUX[1:0]
S1C31D50/D51 TECHNICAL MANUAL
(Rev. 2.00)
Bit name
Initial
0x00
P5IF7
0
P5IF6
0
P5IF5
0
P5IF4
0
P5IF3
0
P5IF2
0
P5IF1
0
P5IF0
0
P5EDGE7
0
P5EDGE6
0
P5EDGE5
0
P5EDGE4
0
P5EDGE3
0
P5EDGE2
0
P5EDGE1
0
P5EDGE0
0
P5IE7
0
P5IE6
0
P5IE5
0
P5IE4
0
P5IE3
0
P5IE2
0
P5IE1
0
P5IE0
0
0x00
P5CHATEN7
0
P5CHATEN6
0
P5CHATEN5
0
P5CHATEN4
0
P5CHATEN3
0
P5CHATEN2
0
P5CHATEN1
0
P5CHATEN0
0
0x00
P5SEL7
0
P5SEL6
0
P5SEL5
0
P5SEL4
0
P5SEL3
0
P5SEL2
0
P5SEL1
1
P5SEL0
1
0x0
0x0
0x0
0x0
0x0
0x0
0x0
0x0
Seiko Epson Corporation
Reset
R/W
Remarks
–
R
–
H0
R/W
Cleared by writing 1.
H0
R/W
H0
R/W
H0
R/W
H0
R/W
H0
R/W
H0
R/W
H0
R/W
H0
R/W
–
H0
R/W
H0
R/W
H0
R/W
H0
R/W
H0
R/W
H0
R/W
H0
R/W
H0
R/W
–
H0
R/W
H0
R/W
H0
R/W
H0
R/W
H0
R/W
H0
R/W
H0
R/W
–
R
–
H0
R/W
–
H0
R/W
H0
R/W
H0
R/W
H0
R/W
H0
R/W
H0
R/W
H0
R/W
–
R
–
H0
R/W
–
H0
R/W
H0
R/W
H0
R/W
H0
R/W
H0
R/W
H0
R/W
H0
R/W
H0
R/W
–
H0
R/W
H0
R/W
H0
R/W
H0
R/W
H0
R/W
H0
R/W
H0
R/W
7 I/O PORTS (PPORT)
48
64
80
100
pin
pin
pin
pin
–
–
–
–
–
–
–
✓
–
–
–
✓
–
–
–
✓
–
–
–
✓
–
–
✓
✓
–
–
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
–
–
–
✓
–
–
–
✓
–
–
–
✓
–
–
–
✓
–
–
✓
✓
–
–
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
–
–
–
✓
–
–
–
✓
–
–
–
✓
–
–
–
✓
–
–
✓
✓
–
–
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
–
–
–
–
–
–
–
✓
–
–
–
✓
–
–
–
✓
–
–
–
✓
–
–
✓
✓
–
–
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
–
–
–
–
–
–
–
✓
–
–
–
✓
–
–
–
✓
–
–
–
✓
–
–
✓
✓
–
–
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
–
–
–
✓
–
–
–
✓
–
–
–
✓
–
–
–
✓
–
–
✓
✓
–
–
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
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