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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PCK2023 датащи(PDF) 18 Page - NXP Semiconductors |
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PCK2023 датащи(HTML) 18 Page - NXP Semiconductors |
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18 / 30 page  Philips Semiconductors Product data PCK2023 CK408 (66/100/133/200 MHz) spread spectrum differential system clock generator 2001 Sep 07 18 BYTE 0 BIT DESCRIPTION/FUNCTION TYPE POWER UP CONDITION OUTPUT(S) AFFECTED PIN AFFECTED SOURCE PIN 0 S0 reflects the value of the Sel_0 pin sampled on power-up R externally selected N/A N/A 54 1 S1 reflects the value of the Sel_1 pin sampled on power-up R externally selected N/A N/A 55 2 S2 reflects the value of the Sel_2 pin sampled on power-up R externally selected N/A N/A 40 3 PCI_stop. This bit is ANDed with the PCI_STOP pin for I2C readback and control of PCI outputs RW externally selected All PCI clock outputs except PCI[2:0] pins 10, 11, 12, 13, 16, 17, 18 34 4 CPU_stop reflects the current value of the external CPU_Stop pin R externally selected All CPU clock pairs 44, 45, 48, 49, 51, 52 53 5 VCH select 66 MHz/48MHz enabled RW 0 = 66MHz enabled 3V66_1/VCH 35 N/A 6 not used — 0 — — — 7 spread spectrum enabled RW 0 = spread off CPU[2:0], 3V66[1:0] 5, 6, 7, 10, 11, 12, 13, 16, 17, 18, 33, 35 N/A BYTE 1 BIT DESCRIPTION/FUNCTION TYPE POWER UP CONDITION OUTPUT(S) AFFECTED PIN AFFECTED SOURCE PIN 0 CPU0 output enable 1 = enabled 0 = disabled RW 1 = enabled CPU0 CPU0 51, 52 N/A 1 CPU1 output enable 1 = enabled 0 = disabled RW 1 = enabled CPU1 CPU1 48, 49 55 2 CPU2 output enable 1 = enabled 0 = disabled RW 1 = enabled CPU2 CPU2 44, 45 40 3 allow control of CPU0 with assertion of CPU_Stop 1 = enabled 0 = disabled RW 0 = not free running, is affected by CPU_Stop CPU0 CPU0 51, 52 34 4 allow control of CPU1 with assertion of CPU_Stop 1 = enabled 0 = disabled RW 0 = not free running, is affected by CPU_Stop CPU1 CPU1 48, 49 53 5 allow control of CPU2 with assertion of CPU stop 1 = enabled 0 = disabled RW 0 = not free running, is affected by CPU_Stop CPU2 CPU2 44, 45 N/A 6 not used — 0 — — — 7 CPU Mult0 value sampled at startup R externally selected N/A N/A 43 |
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