Rainbow Electronics W90P710CDG - Manual (Page 420)

W90P710CD/W90P710CDG
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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 DBEN3 DBEN2 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] DBEN3
Debounce circuit enable for GPIO19 (nIRQ3)
1 = enable
0 = disable
[2] DBEN2
Debounce circuit enable for GPIO18 (nIRQ2)
1 = enable
0 = disable
[1] DBEN1
Debounce circuit enable for GPIO17 (nIRQ1)
1 = enable
0 = disable
[0] DBEN0
Debounce circuit enable for GPIO16 (nIRQ0)
1 = enable
0 = disable
GPIO Interrupt Configuration Register (GPIO_XICFG)
REGISTER ADDRESS R/W DESCRIPTION RESET VALUE
GPIO_XICFG 0xFFF8_3074 R/W Extend Interrupt Configure
Register 0xXXXX_XX00