Rainbow Electronics W90N745CDG User Manual
Page 338
W90N745CD/W90N745CDG
- 334 -
BITS
DESCRIPTION
[31:13] RESERVED -
[12:0]
DATAIN5
Port5 input data register
The DATAIN5 indicates the status of each GPIO17~GPIO5 pin
regardless of its operation mode. The reserved bits will be read
as 0s.
GPIO Debounce Control Register (GPIO_DBNCECON)
REGISTER ADDRESS
R/W
DESCRIPTION RESET
VALUE
GPIO_DBNCECON 0xFFF8_3070 R/W GPIO
debounce control register 0xXXXX_XX00
31
30
29
28
27
26
25
24
RESERVED
23
22
21
20
19
18
17
16
RESERVED
15
14
13
12
11
10
9
8
RESERVED
7
6
5
4
3
2
1
0
RESERVED DBCLKSEL
RESERVED
DBEN1
DBEN0
BITS
DESCRIPTION
[31:7] RESERVED
-
[6:4]
DBCLKSEL
Debounce Clock Selection
These 3 bits are used to select the clock rate for de-bouncer circuit. The
relationship between the system clock HCLK and the de-bounce clock
TCLK_BUN is as follows: TCLK_BUN = HCLK / 2
DBCLKSEL
[3:2] RESERVED -
[1]
DBEN1
Debounce circuit enable for GPIO17 (nIRQ1)
1 = enable
0 = disable
[0]
DBEN0
Debounce circuit enable for GPIO16 (nIRQ0)
1 = enable
0 = disable