AMD gx 5530a schema cklst free download

File name gx_5530a_schema_cklst.pdf

AMD GeodeTM GX1 Processor/ CS5530A Companion Device Schematic Checklist 1.0 Scope AMD GeodeTM Solutions offer custom products for the 2.1 GX1 Processor information appliance market. This schematic review 1) Bypass and pull-up components on SDCLK lines at checklist was developed to assist FAEs and OEMs in their the DIMMs should be no-loads if they are there at all. schematic design and review process when using the AMD GeodeTM GX1 processor and AMD GeodeTM CS5530A 2) Verify that the SDCLK lines and SDCLK_OUT companion device. SDCLK_IN loop adhere to the current layout guide- lines for the processor being used. Note: This is revision 1.2 of this document. The differ- ence from revision 1.1 (dated October 2000) is the 3) Make sure SMI# is pulled up. addition of item 2 in Section 2.5 "MK1491 Clock 4) 10 ohm series termination resistors are required on Generator" on page 3 regarding spread spectrum the MA bus, MD bus, and memory control lines. The support. resistors should be placed close to the processor. 5) Make sure TEST is pulled down. 2.0 Discussion 6) Make sure FLT# is pulled up with a 10 K-ohm resistor. The following subsections describe the critical device and interface connections for the GX1 processor and CS5530A 7) Make sure 10K pull-ups are on all the processor's companion device and National Semiconductor's PC97317 REQ# and GNT# lines. SuperI/O and DP83815 MacPHYTER devices. 8) MICTOR connectors should be included in the design to provide access to the PCI bus for debug. Refer to the AMD GeodeTM Processor PCI Access Header application note. 9) Be sure not to significantly imbalance the memory controller. An example of this situation would be a sys- tem with four pieces of SDRAM using CS0#, RAS0#, CAS0#, etc. and a DIMM socket using CS2# and CS3#