W90N745CD Datasheet, PDF (326/422 Pages) Winbond – 16/32-bit ARM microcontroller

W90N745CD/W90N745CDG
*In the following pin definition, mark with shading is default function.
PT1CFG0
11
NAME TYPE
10
NAME
TYPE
01
NAME TYPE
PORT1_0
-
-
- nXDACK O
00
NAME TYPE
GPIO18 I/O
PT1CFG1
PORT1_1
11
NAME TYPE
-
10
NAME
-
TYPE
-
01
NAME TYPE
nXDREQ I
00
NAME TYPE
GPIO19 I/O
GPIO Port1 Direction Register (GPIO_DIR1)
REGISTER
GPIO_DIR1
ADDRESS
0xFFF8_3014
R/W
R/W
DESCRIPTION
RESET VALUE
GPIO port0 in/out direction control 0x0000_0000
and pull-up enable register
31
30
29
28
27
26
RESERVED
23
22
21
20
19
18
RESERVED
15
14
13
12
11
10
RESERVED
7
6
5
4
3
2
RESERVED
25
24
17
16
PUPEN1[1:0]
9
8
1
0
OMDEN1[1:0]
BITS
[31:18]
RESERVED
[17:16]
PUPEN1
[15:2]
RESERVED
DESCRIPTION
-
GPIO19 ~ GPIO18 port pins internal pull-up resister enable
This is a 2-bit registers, set corresponding bit to “1” will enable pull
up resister in IO pin.
1 = enable
0 = disable
After power on the resisters are disabled.
-
Publication Release Date: September 22, 2006
- 321 -
Revision A2