W90N745CD Datasheet, PDF (330/422 Pages) Winbond – 16/32-bit ARM microcontroller

W90N745CD/W90N745CDG
GPIO Port2 Direction Register (GPIO_DIR2)
REGISTER
GPIO_DIR2
ADDRESS
0xFFF8_3024
R/W
R/W
DESCRIPTION
RESET VALUE
GPIO port2 in/out direction control 0x0000_0000
and pull-up enable register
31
30
29
28
27
26
RESERVED
23
22
21
20
19
18
PUPEN2[7:0]
15
14
13
12
11
10
RESERVED
7
6
5
4
3
2
OMDEN2[7:0]
25
24
PUPEN2[9:8]
17
16
9
8
OMDEN2[9:8]
1
0
BITS
[31:26]
RESERVED
[25:16]
PUPEN2
[15:10]
RESERVED
[9:0]
OMDEN2
DESCRIPTION
-
GPIO29 ~ GPIO20 port pin internal pull-up resister enable
There are 10 bits for this register, the corresponding bit is set to
“1” will enable pull-up resister on IO pin.
1 = enable
0 = disable
After power on, the registers are disabled.
-
GPIO19 ~ GPIO20 output mode enable
1 = output mode
0 = input mode
NOTE: Output mode enable bits are valid only when bit
PT2CFG9-0 is configured as general purpose I/O mode.
Each port pin can be enabled individually by setting the
corresponding control bit.
Publication Release Date: September 22, 2006
- 325 -
Revision A2