Chapter 5Interrupt ControllerV - 42 Noise Filter Function5.4.4 Noise Filter Sampling Clock Setting Registers■ Sampling Clock Setting Register 0 (NFCLK0: 0x0000A050) [8, 16-bit access register]bp 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0Flag NFCK71NFCK70NFCK61NFCK60NFCK51NFCK50NFCK41NFCK40NFCK31NFCK30NFCK21NFCK20NFCK11NFCK10NFCK01NFCK00At reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0Access R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/Wbp Flag Description Set condition15-14 NFCK71NFCK70Select the IRQ7 sampling clock 00: 1/4 of IOCLK frequency01: 1/8 of IOCLK frequency10: 1/16 of IOCLK frequency11: 1/32 of IOCLK frequency13-12 NFCK61NFCK60Select the IRQ6 sampling clock 00: 1/4 of IOCLK frequency01: 1/8 of IOCLK frequency10: 1/16 of IOCLK frequency11: 1/32 of IOCLK frequency11-10 NFCK51NFCK50Select the IRQ5 sampling clock 00: 1/4 of IOCLK frequency01: 1/8 of IOCLK frequency10: 1/16 of IOCLK frequency11: 1/32 of IOCLK frequency9-8 NFCK41NFCK40Select the IRQ4 sampling clock 00: 1/4 of IOCLK frequency01: 1/8 of IOCLK frequency10: 1/16 of IOCLK frequency11: 1/32 of IOCLK frequency7-6 NFCK31NFCK30Select the IRQ3 sampling clock 00: 1/4 of IOCLK frequency01: 1/8 of IOCLK frequency10: 1/16 of IOCLK frequency11: 1/32 of IOCLK frequency5-4 NFCK21NFCK20Select the IRQ2 sampling clock 00: 1/4 of IOCLK frequency01: 1/8 of IOCLK frequency10: 1/16 of IOCLK frequency11: 1/32 of IOCLK frequency3-2 NFCK11NFCK10Select the IRQ1 sampling clock 00: 1/4 of IOCLK frequency01: 1/8 of IOCLK frequency10: 1/16 of IOCLK frequency11: 1/32 of IOCLK frequency1-0 NFCK01NFCK00Select the IRQ0 sampling clock 00: 1/4 of IOCLK frequency01: 1/8 of IOCLK frequency10: 1/16 of IOCLK frequency11: 1/32 of IOCLK frequency
