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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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P89LPC915FDH датащи(PDF) 30 Page - NXP Semiconductors |
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P89LPC915FDH датащи(HTML) 30 Page - NXP Semiconductors |
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30 / 75 page  xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx x x x xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xx xx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxx x x xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx xxx [1] All ports are in input only (high-impedance) state after power-up. [2] BRGR1 and BRGR0 must only be written if BRGEN in BRGCON SFR is logic 0. If any are written while BRGEN = 1, the result is unpredictable. [3] The RSTSRC register reflects the cause of the P89LPC915/916/917 reset. Upon a power-up reset, all reset source flags are cleared except POF and BOF; the power-on reset value is xx11 0000. [4] After reset, the value is 1110 01x1, i.e., PRE2 to PRE0 are all logic 1, WDRUN = 1 and WDCLK = 1. WDTOF bit is logic 1 after watchdog reset and is logic 0 after power-on reset. Other resets will not affect WDTOF. [5] On power-on reset, the TRIM SFR is initialized with a factory preprogrammed value. Other resets will not cause initialization of the TRIM register. [6] The only reset source that affects these SFRs is power-on reset. Bit address 8F 8E 8D 8C 8B 8A 89 88 TCON* Timer 0 and 1 control 88H TF1 TR1 TF0 TR0 IE1 IT1 IE0 IT0 00 0000 0000 TH0 Timer 0 high 8CH 00 0000 0000 TH1 Timer 1 high 8DH 00 0000 0000 TL0 Timer 0 low 8AH 00 0000 0000 TL1 Timer 1 low 8BH 00 0000 0000 TMOD Timer 0 and 1 mode 89H T1GATE T1C/T T1M1 T1M0 T0GATE T0C/T T0M1 T0M0 00 0000 0000 TRIM Internal oscillator trim register 96H RCCLK ENCLK TRIM.5 TRIM.4 TRIM.3 TRIM.2 TRIM.1 TRIM.0 [5] [6] WDCON Watchdog control register A7H PRE2 PRE1 PRE0 - - WDRUN WDTOF WDCLK [4] [6] WDL Watchdog load C1H FF 1111 1111 WFEED1 Watchdog feed 1 C2H WFEED2 Watchdog feed 2 C3H Table 9. P89LPC917 special function registers …continued * indicates SFRs that are bit addressable. Name Description SFR addr. Bit functions and addresses Reset value MSB LSB Hex Binary |
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