3 Development Board Circuit
3.9 GPIO
DBUG385-1.1E
18(23)
3.9
GPIO
3.9.1
Introduction
Two double row pins with the pitch of 2.54mm are reserved on the
development board. The 20-pin interface connects to Bank7, and the I/O
voltage can be adjusted as 3.3V, 2.5V, and 1.2V. The I/O voltage of the 30
pin can be set as 2.5V, as shown in the figure below.
Figure 3-9 20 pin Interface
1
3
5
7
9
2
4
6
8
10
11
13
15
17
19
12
14
16
18
20
H_A_IO1
H_A_IO3
H_A_IO5
H_A_IO7
H_A_IO9
H_A_IO11
H_A_IO13
H_A_IO15
H_A_IO2
H_A_IO4
H_A_IO6
H_A_IO8
H_A_IO10
H_A_IO12
H_A_IO14
H_A_IO16
3.3V
5.0V
J3
Figure 3-10 30 pin Interface
1
3
5
7
9
2
4
6
8
10
11
13
15
17
19
12
14
16
18
20
21
23
25
27
29
22
24
26
28
30
H_GPIO_01
H_GPIO_03
H_GPIO_05
H_GPIO_07
H_GPIO_09
H_GPIO_11
H_GPIO_13
H_GPIO_15
H_GPIO_02
H_GPIO_04
H_GPIO_06
H_GPIO_08
H_GPIO_10
H_GPIO_12
H_GPIO_14
H_GPIO_16
3.3V
5.0V
H_GPIO_17
H_GPIO_19
H_GPIO_21
H_GPIO_23
H_GPIO_18
H_GPIO_20
H_GPIO_22
H_GPIO_24
H_GPIO_01
J4