I/O Port Mode Registers 1/2 - Samsung S3C2501X User Manual

S3C2501X
31 30 29
X X X
IOPMODE1
31
30 29
X X X
IOPMODE2
See NOTE on
Page 12-1.
28 27 26 25 23 22 21
24
X X
X X X X
X X
28 27 26 25 23 22 21
24
X X X X X X
X X
IOPMODE1
Bit
Signal port
GPIO[31]
31
GPIO[30]
30
GPIO[29]
29
GPIO[28]
28
GPIO[27]
27
GPIO[26]
26
GPIO[25]
25
GPIO[24]
24
GPIO[23]
23
GPIO[22]
22
GPIO[21]
21
GPIO[20]
20
GPIO[19]
19
GPIO[18]
18
GPIO[17]
17
GPIO[16]
16
GPIO[15]
15
GPIO[14]
14
GPIO[13]
13
GPIO[12]
12
GPIO[11]
11
GPIO[10]
10
GPIO[9]
9
GPIO[8]
8
GPIO[7]
7
GPIO[6]
6
GPIO[5]
5
GPIO[4]
4
GPIO[3]
3
GPIO[2]
2
GPIO[1]
1
GPIO[0]
0
Figure 12-1. I/O Port Mode Registers 1/2 (IOPMODE1/2)
20 19 18 17 16 15 14 13
X X X X X X X
X
14 13
20 19 18 17 16 15
X X X X X
X X X
Reset value Signal port
1
1
1
1
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
12 11 10 9 8 7 6 5
X X X X X X X X X X
12 11 10 9 8 7 6 5
X X X X X X X X X X
IOPMODE2
Reset value
GPIO[63] 1
GPIO[62] 1
GPIO[61] 1
GPIO[60] 1
GPIO[59] 1
GPIO[58] 1
GPIO[57] 1
GPIO[56] 1
GPIO[55] 1
GPIO[54] 1
GPIO[53] 1
GPIO[52] 1
GPIO[51] 1
GPIO[50] 1
GPIO[49] 1
GPIO[48] 1
GPIO[47] 1
GPIO[46] 1
GPIO[45] 1
GPIO[44] 1
GPIO[43] 1
GPIO[42] 1
GPIO[41] 1
GPIO[40] 1
GPIO[39] 1
GPIO[38] 1
GPIO[37] 1
GPIO[36] 1
GPIO[35] 1
GPIO[34] 1
GPIO[33] 1
GPIO[32] 1
I/O PORTS
4 3 2 1 0
X X X
4 3 2 1 0
X X X
12-3