Rainbow Electronics W90N740 User Manual
Page 197
W90N740
Publication Release Date: November 26, 2004
- 193 -
Revision A4
GPIO Data Output Register (GPIO_DATAOUT)
Register Address
R/W
Description
Reset
Value
GPIO_DATAOUT 0xFFF8.3008 R/W GPIO Data Output Register
0x0000.0000
31
30
29
28
27
26
25
24
RESERVED
23
22
21
20
19
18
17
16
RESERVED
GPIODO20
GPIODO19
GPIODO18
GPIODO17 GPIODO16
15
14
13
12
11
10
9
8
GPIODO15 GPIODO14 GPIODO13 GPIODO12
GPIODO11
GPIODO10
GPIODO9 GPIODO8
7
6
5
4
3
2
1
0
GPIODO7 GPIODO6 GPIODO5 GPIODO4
GPIODO3
GPIODO2
GPIODO1 GPIODO0
GPIODOx: GPIO output corresponding to bit x
If the GPIOx is used as a general-purpose output pin, then the corresponding GPIODOx
specifies the value to output from this pin.
GPIO Data Input Register (GPIO_DATAIN)
Register Address
R/W
Description
Reset
Value
GPIO_DATAIN 0xFFF8.3008 R
GPIO Data Input Register
Undefined
31
30
29
28
27
26
25
24
RESERVED
23
22
21
20
19
18
17
16
RESERVED
GPIODI20
GPIODI19
GPIODI18
GPIODI17 GPIODI16
15
14
13
12
11
10
9
8
GPIODI15 GPIODI14 GPIODI13 GPIODI12
GPIODI11
GPIODI10
GPIODI9 GPIODI8
7
6
5
4
3
2
1
0
GPIODI7 GPIODI6 GPIODI5 GPIODI4 GPIODI3 GPIODI2 GPIODI1 GPIODI0
GPIODIx: GPIO status corresponding to bit x
The GPIODIx indicates the status of each GPIO pin regardless of its operation mode.