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PIC16F1507-E/SS. 数据表(PDF) 174 Page - Microchip Technology |
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PIC16F1507-E/SS. 数据表(HTML) 174 Page - Microchip Technology |
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174 / 278 page  PIC16(L)F1507 DS40001586D-page 174 2011-2015 Microchip Technology Inc. 21.9 Register Definitions: NCOx Control Registers REGISTER 21-2: NCOxCLK: NCOx INPUT CLOCK CONTROL REGISTER REGISTER 21-1: NCOxCON: NCOx CONTROL REGISTER R/W-0/0 R/W-0/0 R-0/0 R/W-0/0 U-0 U-0 U-0 R/W-0/0 NxEN NxOE NxOUT NxPOL — — —NxPFM bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7 NxEN: NCOx Enable bit 1 = NCOx module is enabled 0 = NCOx module is disabled bit 6 NxOE: NCOx Output Enable bit 1 = NCOx output pin is enabled 0 = NCOx output pin is disabled bit 5 NxOUT: NCOx Output bit 1 = NCOx output is high 0 = NCOx output is low bit 4 NxPOL: NCOx Polarity bit 1 = NCOx output signal is active low (inverted) 0 = NCOx output signal is active high (non-inverted) bit 3-1 Unimplemented : Read as ‘0’ bit 0 NxPFM: NCOx Pulse Frequency Mode bit 1 = NCOx operates in Pulse Frequency mode 0 = NCOx operates in Fixed Duty Cycle mode R/W-0/0 R/W-0/0 R/W-0/0 U-0 U-0 U-0 R/W-0/0 R/W-0/0 NxPWS<2:0>(1, 2) — — — NxCKS<1:0> bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7-5 NxPWS<2:0>: NCOx Output Pulse Width Select bits(1, 2) 111 = 128 NCOx clock periods 110 = 64 NCOx clock periods 101 = 32 NCOx clock periods 100 = 16 NCOx clock periods 011 = 8 NCOx clock periods 010 = 4 NCOx clock periods 001 = 2 NCOx clock periods 000 = 1 NCOx clock periods bit 4-2 Unimplemented: Read as ‘0’ bit 1-0 NxCKS<1:0>: NCOx Clock Source Select bits 11 = NCO1CLK pin 10 = LC1_out 01 = FOSC 00 = HFINTOSC (16 MHz) Note 1: NxPWS applies only when operating in Pulse Frequency mode. 2: If NCOx pulse width is greater than NCO_overflow period, operation is indeterminate. |
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