DDR Dram Serial Presence Detect, Device Address | Emerson MVME6100

Programming Details

			The following table shows the I2C devices on the MVME6100 and their
	2
	2		assigned device IDs.
			assigned device IDs.
			Table 2-4. I2C Bus Device Addressing

					Device Address	I2C BUS
			Device Function	Size	(A2A1A0)	Address	Notes

			Memory SPD (Bank 0 and 1)	256 x 8	000b	$A0	1

			Memory SPD (Bank 2 and 3)	256 x 8	001b	$A2	1

			Reserved (PMCSpan SROM)	NA	010b	$A4

			MV64360 User Defined Initialization	8K x 8	011b	$A6	2

			Configuration VPD	8K x 8	100b	$A8	2

			User VPD	8K x 8	101b	$AA	2

			Not Used	NA	110b	$AC

			Not Used	NA	111b	$AE

			DS1621 Temperature Sensor	NA	011b	$90

Notes 1. The SPD defines the physical attributes of each bank or group of banks, i.e. if both banks of a group are populated, they will be the same speed and memory size.

2.This is a dual address serial EEPROM (AT24C64A or equivalent).

DDR DRAM Serial Presence Detect

There are two onboard SPD serial EEPROMs on the MVME6100 accessible via the I2C serial interface. The first 128 bytes of each SPD contains module type, SDRAM organization, and timing parameters.

2-10	Computer Group Literature Center Web Site

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Emerson MVME6100 manual DDR Dram Serial Presence Detect, I2C Bus Device Addressing, Device Function Size A2A1A0 Address

Contents

MVME6100 Single-Board Computer Programmer’s Reference GuidePage Ground the Instrument Safety Summary Flammability Lithium Battery CautionEMI Caution CE Notice European Community Limited and Restricted Rights Legend Contents Appendix a List of Figures List of Tables Model Number Description About This Guide Comments and Suggestions Overview of Contents Bold Conventions Used in This Manual Overview Introduction Feature Description MVME6100 Features SummaryNvram PCI/PMC MVME6100 Board Layout Diagram Processor Address Start End Size Definition Default Processor Memory MapDefault Processor Address Map Memory Maps F100 Ffff 29FF Ffff41FF Ffff F0FF Ffff MOTLoad’s Processor Address Map MOTLoad’s Processor Memory Map Default PCI Address Map Default PCI Memory MapPCI Address Start End Size Definition MOTLoad’s PCI Memory Maps MOTLoad’s PCI Memory MapsVME Memory Map System I/O Memory Map COM 1 Uart Device Bank 1 I/O Memory MapAddress Definition M48T37V NVRAM/RTC Banksel System Status RegisterSystem Status Register Refclk Srominit AbortlFlashbsyl Fusestat System Status Register 2- 0xF1100001 BdfailEepromwp Flashawp Fbawphdr FbootbwpFbootbwphdr Tstatmask Reset Board Rsvd BoardresetSystem Status Register 3- 0xF1100002 EREADY1 Presence Detect Register10. Presence Detect Register Ipmcprsnt PMC0PL Configuration Header/Switch Register S111. Configuration Header/Switch Register Pcieprsntl 3 4 5 6 7 TBEN0 Time Base Enable RegisterQuad Universal Asynchronous Receiver/Transmitter Uart 12. Tben Register Real-Time Clock and Nvram 13. M48T37V AccessAddress Offset Function 0xF1110000 Programming Details MV64360 Multi-Purpose Port Configuration MPP Pin Input Number Output Function MV64360 MPP Pin Function Assignments MV64360 Reset Configuration Srom MV64360 Power-Up Configuration Settings MV64360 Power-Up Configuration Settings PCI1 DLL Dram BADR0 PCI0 DLLMII/GMII GMII/PCS Dram PLL N TBD Real-Time Clock and Nvram Flash Memory M48T37V Access Two-Wire Serial Interface Device Function Size A2A1A0 Address DDR Dram Serial Presence DetectI2C Bus Device Addressing Device Address MV64360 Device Controller Bank Assignments VPD and User Configuration EEPROMsTemperature Sensor MV64360 Initialization Device Bank Assignments MPC Bus and PCI Bus ArbitrationPCI Bus 0 and PCI Bus 1 Local Buses PCI Mode/Frequency Selection Idsel Mapping for PCI Devices PCI Configuration SpaceIdsel AD20 MPP Pin Assignment PCI Masters PCI Arbitration Assignments for MV64360 AsicPCI Bus 1 Local Bus PMC Expansion Slots PCI Arbitration Assignments for MV64360 PCI Bus 1 Local Bus PMC Expansion Slots PCI Bus 0 Local Bus Devices MV64360 Interrupt Assignments MV64360 Interrupt ControllerGroup MV64360 Edge/Level Polarity Interrupt Source PCI-PMC 0 INTD#, PMC INTB# PCI-PMC 0 INTC#, PMC INTA# DS1621 Digital Thermometer and Thermostat provides MV64360 Endian Issues Table A-1. Motorola Computer Group Documents Motorola Computer Group DocumentsDocument Title Motorola Publication Number MPC7457EC/D Manufacturers’ DocumentsTable A-2. Manufacturers’ Documents Document Title and Source Publication Number Manufacturers’ Documents Table A-2. Manufacturers’ Documents Table A-3. Related Specifications Related Specifications Index