Samsung S5PC100 User Manual page 1754

KEYPAD INTERFACE
7.5 KEYPAD INTERFACE DEBOUNCING FILTER CLOCK DIVISION REGISTER(KEYIFFC, R/W, ADDRESS
= 0XF310_0010)
KEYIFFC
[31:10] Reserved
Reserved
KEYIFFC
10.8-10
Bit
[9:0]
KEYPAD interface debouncing filter clock division register.
User can set compare value for 10-bit up-counter.
This register value means when FC_EN bit is HIGH.
FCLK = FLT_CLK / ((KEYIFFC[9:0] + 1) x 2)
(FLT_CLK is OSC_IN or USB_XI)
S5PC100 USER'S MANUAL (REV1.0)
Description Reset Value
0x000000
0x000