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PC34709VK データシート(PDF) 21 Page - Freescale Semiconductor, Inc |
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PC34709VK データシート(HTML) 21 Page - Freescale Semiconductor, Inc |
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21 / 142 page ![]() Analog Integrated Circuit Device Data 21 Freescale Semiconductor 34709 Functional Block Description The power-up sequence is shown in Tables 10 and 11. VCOREDIG, VSRTC, and VCORE, are brought up in the pre-sequencer start-up. VUSB(29) Reserved 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 VUSB2 Reserved 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 VSRTC Reserved 1.2 1.3 1.3 1.3 1.3 1.2 1.2 1.2 1.2 1.2 1.2 VPLL Reserved 1.8 1.8 1.8 1.8 1.8 1.8 1.8 1.8 1.8 1.8 1.8 VREFDDR Reserved On On On On On On On On On On On VDAC Reserved 2.775 2.775 2.775 2.775 2.775 2.5 2.5 2.5 2.5 2.5 2.5 VGEN1 Reserved 1.2 1.3 1.3 1.3 1.3 1.2 1.2 1.2 1.2 1.2 1.2 VGEN2 Reserved 2.5 2.5 2.5 2.5 2.5 3.1 3.1 3.1 3.1 2.5 2.5 Notes 28. The SWx node are activated in APS mode when enabled by the start-up sequencer. 29. VUSB is supplied by SWBST. Table 10. Power-up Sequence i.MX53 Tap x 2.0 ms PUMS [4:1] = [0101,0110,0111,1000,1001] (i.MX53) 0 SW2 (VCC) 1 VPLL (NVCC_CKIH = 1.8 V) 2 VGEN2 (VDD_REG= 2.5 V, external PNP 3 SW3 (VDDA) 4 SW1A/B (VDDGP) 5 SW4A/B, VREFDDR (DDR/SYS) 6 7 SW5 (I/O), VGEN1 8 VUSB, VUSB2 9 VDAC Table 11. Power-up Sequence i.MX50 Tap x 2.0 ms PUMS [4:1] = [0100, 1011, 1100, 1101, 1110, 1111] (i.MX50/I.MX53) 0 SW2 1 SW3 2 SW1A/B 3 VDAC 4 SW4A/B, VREFDDR 5 SW5 6 VGEN2, VUSB2 7 VPLL 8 VGEN1 9 VUSB Table 9. Power-up Defaults i.MX Reserved 53 LPM 53 DDR2 53 DDR3 53 LVDDR3 53 LVDDR2 50 50 50 50 50 50 |
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