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SC3200 Datasheet(PDF) 64 Page - Advanced Micro Devices |
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SC3200 Datasheet(HTML) 64 Page - Advanced Micro Devices |
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64 / 447 page ![]() 64 AMD Geode™ SC3200 Processor Data Book Signal Definitions Revision 5.1 FPCI_MON D3 A4 I Fast-PCI Monitoring. The strap on this ball forces selection of Fast-PCI monitoring sig- nals. For normal operation, strap this signal low using a 1.5 K Ω resistor. The value of this strap can be read on the MCR[30]. PCICLK0 DID1 D2 C6 I Device ID. Together, the straps on these sig- nals define the system-level chip ID. The value of DID1 can be read in the MCR[29]. The value of DID0 can be read in the MCR[31]. DID0 and DID1 must have a pull-up resistor of 1.5 K Ω. GNT1# DID0 D4 C5 I GNT0# POR# J29 AH9 I Power On Reset. POR# is the system reset signal generated from the power supply to indicate that the system should be reset. --- X32I C30 AJ2 I/O Crystal Connections. Connected directly to a 32.768 KHz crystal. This clock input is required even if the internal RTC is not being used. Some of the internal clocks are derived from this clock. If an external clock is used, it should be connected to X32I, using a voltage level of 0 volts to VCORE +10% maximum. X32O should remain unconnected. --- X32O D29 AJ3 --- X27I A29 AG3 I/O Crystal Connections. Connected directly to a 27.000 MHz crystal. Some of the internal clocks are derived from this clock. If an exter- nal clock is used, it should be connected to X27I, using a voltage level of 0 volts to VIO and X27O should be remain unconnected. --- X27O D27 AH2 --- CLK27M A23 AA4 O 27 MHz Output Clock. Output of crystal oscillator. IDE_DATA5 PCIRST# D1 A6 O PCI and System Reset. PCIRST# is the reset signal for the PCI bus and system. It is asserted for approximately 100 µs after POR# is negated. --- 3.4.1 System Interface (Continued) Signal Name Ball No. Type Description Mux EBGA TEPBGA |
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