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Address
Register name
PPORTPADAT
0x0020
(PA Port Data
02a0
Register)
PPORTPAIOEN
0x0020
(PA Port Enable
02a2
Register)
PPORTPARCTL
0x0020
(PA Port Pull-
02a4
up/down Control
Register)
PPORTPAINTF
0x0020
(PA Port Interrupt
02a6
Flag Register)
PPORTPAINTCTL
0x0020
(PA Port Interrupt
02a8
Control Register)
PPORTPACHATEN
0x0020
(PA Port
02aa
Chattering Filter
Enable Register)
PPORTPAMODSEL
0x0020
(PA Port Mode
02ac
Select Register)
PPORTPAFNCSEL
0x0020
(PA Port Function
02ae
Select Register)
B-18
Bit
Bit name
15
–
14–8
PAOUT[6:0]
7
–
6–0
PAIN[6:0]
15
–
14–8
PAIEN[6:0]
7
–
6–0
PAOEN[6:0]
15
–
14–8
PAPDPU[6:0]
7
–
6–0
PAREN[6:0]
15–8
–
7
–
6–0
PAIF[6:0]
15
–
14–8
PAEDGE[6:0]
7
–
6–0
PAIE[6:0]
15–8
–
7
–
6–0
PACHATEN[6:0]
15–8
–
7
–
6–0
PASEL[6:0]
15–14
–
13–12
PA6MUX[1:0]
11–10
PA5MUX[1:0]
9–8
PA4MUX[1:0]
7–6
PA3MUX[1:0]
5–4
PA2MUX[1:0]
3–2
PA1MUX[1:0]
1–0
PA0MUX[1:0]
Seiko Epson Corporation
Initial
Reset
R/W
0
–
R
0x00
H0
R/W
0
–
R
0x00
H0
R
0
–
R
0x00
H0
R/W
0
–
R
0x00
H0
R/W
0
–
R
0x00
H0
R/W
0
–
R
0x00
H0
R/W
0x00
–
R
0
–
R
0x00
H0
R/W
0
–
R
0x00
H0
R/W
0
–
R
0x00
H0
R/W
0x00
–
R
0
–
R
0x00
H0
R/W
0x00
–
R
0
–
R
0x00
H0
R/W
0x0
–
R
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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