7-24
Seiko Epson Corporation
S1C31D50 TECHNICAL MANUAL
(Rev. 1.00)
7.7.11.
PA Port Group
The PA port group consists of seven ports PA0
–
PA6 and they support the GPIO and interrupt functions.
Table 7.7.11.1 Control Registers for P5 Port Group
Register name
Bit
Bit name
Initial
Reset
R/W
Remarks
PPORTPADAT
(PA Port Data
Register)
15
–
0
–
R
–
14
–
8
PAOUT[6:0]
0x00
H0
R/W
7
–
0
–
R
6
–
0
PAIN[6:0]
0x00
H0
R
PPORTPAIOEN
(PA Port Enable
Register)
15
–
0
–
R
–
14
–
8
PAIEN[6:0]
0x00
H0
R/W
7
–
0
–
R
6
–
0
PAOEN[6:0]
0x00
H0
R/W
PPORTPARCTL
(PA Port Pull-
up/down Control
Register)
15
–
0
–
R
–
14
–
8
PAPDPU[6:0]
0x00
H0
R/W
7
–
0
–
R
6
–
0
PAREN[6:0]
0x00
H0
R/W
PPORTPAINTF
(PA Port Interrupt
Flag Register)
15
–
8
–
0x00
–
R
–
7
–
0
–
R
6
–
0
PAIF[6:0]
0x00
H0
R/W
Cleared by writing 1.
PPORTPAINTCTL
(PA Port Interrupt
Control Register)
15
–
0
–
R
–
14
–
8
PAEDGE[6:0]
0x00
H0
R/W
7
–
0
–
R
6
–
0
PAIE[6:0]
0x00
H0
R/W
PPORTPACHATEN
(PA Port Chattering
Filter Enable
Register)
15
–
8
–
0x00
–
R
–
7
–
0
–
R
6
–
0
PACHATEN[6:0]
0x00
H0
R/W
PPORTPAMODSEL
(PA Port Mode
Select Register)
15
–
8
–
0x00
–
R
–
7
–
0
–
R
6
–
0
PASEL[6:0]
0x00
H0
R/W
PPORTPAFNCSEL
(PA Port Function
Select Register)
15
–
14
–
0x0
–
R
–
13
–
12
PA6MUX[1:0]
0x0
H0
R/W
11
–
10
PA5MUX[1:0]
0x0
H0
R/W
9
–
8
PA4MUX[1:0]
0x0
H0
R/W
7
–
6
PA3MUX[1:0]
0x0
H0
R/W
5
–
4
PA2MUX[1:0]
0x0
H0
R/W
3
–
2
PA1MUX[1:0]
0x0
H0
R/W
1
–
0
PA0MUX[1:0]
0x0
H0
R/W
Table 7.7.11.2 PA Port Group Function Assignment
Port
name
PASEL
y
= 0
PASEL
y
= 1
GPIO
PA
y
MUX = 0x0
(Function 0)
PA
y
MUX = 0x1
(Function 1)
PA
y
MUX = 0x2
(Function 2)
PA
y
MUX = 0x0
(Function 0)
Peripheral
Pin
Peripheral
Pin
Peripheral
Pin
Peripheral
Pin
PA0
PA0
–
–
–
–
–
–
–
–
PA1
PA1
–
–
–
–
–
–
–
–
PA2
PA2
–
–
–
–
–
–
–
–
PA3
PA3
CLG
FOUT
–
–
–
–
–
–
PA4
PA4
–
–
–
–
–
–
–
–
PA5
PA5
–
–
–
–
–
–
–
–
PA6
PA6
–
–
–
–
–
–
–
–
Summary of Contents for S1C31D50
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