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Address
Register name
PPORTP4DAT
0x0020
(P4 Port Data
0240
Register)
PPORTP4IOEN
0x0020
(P4 Port Enable
0242
Register)
PPORTP4RCTL
0x0020
(P4 Port Pull-
0244
up/down Control
Register)
PPORTP4INTF
0x0020
(P4 Port Interrupt
0246
Flag Register)
PPORTP4INTCTL
0x0020
(P4 Port Interrupt
0248
Control Register)
PPORTP4CHATEN
0x0020
(P4 Port
024a
Chattering Filter
Enable Register)
PPORTP4MODSEL
0x0020
(P4 Port Mode
024c
Select Register)
PPORTP4FNCSEL
0x0020
(P4 Port Function
024e
Select Register)
B-12
Bit
Bit name
15–8
P4OUT[7:0]
7–0
P4IN[7:0]
15–8
P4IEN[7:0]
7–0
P4OEN[7:0]
15–8
P4PDPU[7:0]
7–0
P4REN[7:0]
15–8
–
7–0
P4IF[7:0]
15–8
P4EDGE[7:0]
7–0
P4IE[7:0]
15–8
–
7–0
P4CHATEN[7:0]
15–8
–
7–0
P4SEL[7:0]
15–14
P47MUX[1:0]
13–12
P46MUX[1:0]
11–10
P45MUX[1:0]
9–8
P44MUX[1:0]
7–6
P43MUX[1:0]
5–4
P42MUX[1:0]
3–2
P41MUX[1:0]
1–0
P40MUX[1:0]
Seiko Epson Corporation
Initial
Reset
R/W
0x00
H0
R/W
0x00
H0
R
0x00
H0
R/W
0x00
H0
R/W
0x00
H0
R/W
0x00
H0
R/W
0x00
–
R
0x00
H0
R/W
0x00
H0
R/W
0x00
H0
R/W
0x00
–
R
0x00
H0
R/W
0x00
–
R
0x00
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
S1C31D50 TECHNICAL MANUAL
Remarks
–
–
–
–
Cleared by writing 1.
–
–
–
–
(Rev. 1.00)
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