7 I/O PORTS (PPORT)
7-36
Seiko Epson Corporation
S1C31D50/D51 TECHNICAL MANUAL
(Rev. 2.00)
Register name
Bit
Bit name
Initial
Reset
R/W
Remarks
48
pin
64
pin
80
pin
100
pin
PARCTL
(Pa Port Pull-up/down
Control Register)
15 –
0
–
R
–
– – – –
14 PAPDPU6
0
H0
R/W –
– – –
✓
13 PAPDPU5
0
H0
R/W
– – –
✓
12 PAPDPU4
0
H0
R/W
– –
✓
✓
11 PAPDPU3
0
H0
R/W
✓
✓
✓
✓
10 PAPDPU2
0
H0
R/W
–
✓
✓
✓
9
PAPDPU1
0
H0
R/W
–
✓
✓
✓
8
PAPDPU0
0
H0
R/W
– –
✓
✓
7
–
0
–
R
–
– – – –
6
PAREN6
0
H0
R/W –
– – –
✓
5
PAREN5
0
H0
R/W
– – –
✓
4
PAREN4
0
H0
R/W
– –
✓
✓
3
PAREN3
0
H0
R/W
✓
✓
✓
✓
2
PAREN2
0
H0
R/W
–
✓
✓
✓
1
PAREN1
0
H0
R/W
–
✓
✓
✓
0
PAREN0
0
H0
R/W
– –
✓
✓
PAINTF
(Pa Port Interrupt
Flag Register)
15–8 –
0x00
–
R
–
– – – –
7
–
0
–
R
– – – –
6
PAIF6
0
H0
R/W Cleared by writing 1.
– – –
✓
5
PAIF5
0
H0
R/W
– – –
✓
4
PAIF4
0
H0
R/W
– –
✓
✓
3
PAIF3
0
H0
R/W
✓
✓
✓
✓
2
PAIF2
0
H0
R/W
–
✓
✓
✓
1
PAIF1
0
H0
R/W
–
✓
✓
✓
0
PAIF0
0
H0
R/W
– –
✓
✓
PAINTCTL
(Pa Port Interrupt
Control Register)
15 –
0
–
R
–
– – – –
14 PAEDGE6
0
H0
R/W –
– – –
✓
13 PAEDGE5
0
H0
R/W
– – –
✓
12 PAEDGE4
0
H0
R/W
– –
✓
✓
11 PAEDGE3
0
H0
R/W
✓
✓
✓
✓
10 PAEDGE2
0
H0
R/W
–
✓
✓
✓
9
PAEDGE1
0
H0
R/W
–
✓
✓
✓
8
PAEDGE0
0
H0
R/W
– –
✓
✓
7
–
0
–
R
–
– – – –
6
PAIE6
0
H0
R/W –
– – –
✓
5
PAIE5
0
H0
R/W
– – –
✓
4
PAIE4
0
H0
R/W
– –
✓
✓
3
PAIE3
0
H0
R/W
✓
✓
✓
✓
2
PAIE2
0
H0
R/W
–
✓
✓
✓
1
PAIE1
0
H0
R/W
–
✓
✓
✓
0
PAIE0
0
H0
R/W
– –
✓
✓
PACHATEN
(Pa Port Chattering
Filter Enable Register)
15–8 –
0x00
–
R
–
– – – –
7
–
0
–
R
– – – –
6
PACHATEN6
0
H0
R/W –
– – –
✓
5
PACHATEN5
0
H0
R/W
– – –
✓
4
PACHATEN4
0
H0
R/W
– –
✓
✓
3
PACHATEN3
0
H0
R/W
✓
✓
✓
✓
2
PACHATEN2
0
H0
R/W
–
✓
✓
✓
1
PACHATEN1
0
H0
R/W
–
✓
✓
✓
0
PACHATEN0
0
H0
R/W
– –
✓
✓