Transmit Address Map Register XAM | Texas Instruments VLYNQ Port

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VLYNQ Port Registers

3.8Transmit Address Map Register (XAM)

The transmit address map register (XAM) is used to translate transmit packet addresses to remote device configuration bus addresses. The XAM is shown in Figure 16 and described in Table 14.

Figure 16. Transmit Address Map Register (XAM)

31	2	1	0
TXADRMAP		Reserved
R/W-0			R-0
LEGEND: R/W = Read/Write; R = Read only; -n= value after reset

Table 14. Address Map Register (XAM) Field Descriptions

Bit	Field	Value	Description
31-2	TXADRMAP	0-3FFF FFFFh	This field is subtracted from the slave configuration bus address [25:0] to obtain the zero
			relative transmit packet address. This field should be programmed with a value of 0 (reset
			value).
1-0	Reserved	0	Reserved. Always read as 0. Writes have no effect.

SPRUE36A –September 2007	VLYNQ Port	33
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Texas Instruments VLYNQ Port Transmit Address Map Register XAM, Address Map Register XAM Field Descriptions, Txadrmap

Contents

Users Guide Submit Documentation Feedback Contents Appendix C Appendix B List of Figures List of Tables About This Document Notational ConventionsRelated Documentation From Texas Instruments Trademarks Features IntroductionPurpose of the Peripheral Industry Standards Compliance Statement Functional Block Diagram Clock Control Peripheral Architecture Vlynq Port Pins Signal DescriptionsPin Multiplexing Protocol Description Vlynq Module Structure Vlynq Functional Description TxSM Write Operations Read Operations Initialization Serial Interface Width ConfigurationAuto-Negotiation Serial Interface Width Address Translation Register DM644x Vlynq Module Address Translation Example Single Mapped Region Remote Vlynq Module DM644x Vlynq Module Example 1. Address Translation Example Flow Control Software Reset Considerations Reset ConsiderationsHardware Reset Considerations Interrupt Support Writes to Interrupt Pending/Set Register Interrupt Generation Mechanism Block Diagram Serial Bus Error Interrupts DMA Event SupportRemote Interrupts Emulation Considerations Power Management Vlynq Register Address Space Vlynq Port RegistersVlynq Port Controller Registers Block Name Start Address End Address Size Revision Register Revid Field Descriptions Revision Register RevidRevmaj Revmin Bit Field Value Description Control Register Ctrl Field Descriptions Control Register Ctrl Bit Field Aoptdisable Status Register Stat Field Descriptions Status Register Stat Lerror No error Interrupt Status/Clear Register Intstatclr Interrupt Priority Vector Status/Clear Register IntpriNointpend Instat Interrupt Pointer Register Intptr Interrupt Pending/Set Register IntpendsetInterrupt Pointer Register Intptr Field Descriptions Intset Transmit Address Map Register XAM Address Map Register XAM Field DescriptionsTxadrmap Receive Address Map Offset 1 Register RAMO1 Receive Address Map Size 1 Register RAMS1RXADRSIZE1 RXADROFFSET1 Receive Address Map Offset 2 Register RAMO2 Receive Address Map Size 2 Register RAMS2RXADRSIZE2 RXADROFFSET2 Receive Address Map Offset 3 Register RAMO3 Receive Address Map Size 3 Register RAMS3RXADRSIZE3 RXADROFFSET3 Receive Address Map Offset 4 Register RAMO4 Receive Address Map Size 4 Register RAMS4RXADRSIZE4 RXADROFFSET4 Auto Negotiation Register Autngo Chip Version Register ChipverChip Version Register Chipver Field Descriptions Auto Negotiation Register Autngo Field Descriptions Vlynq Port Remote Controller Registers Remote Configuration Registers Special 8b/10b Code Groups Appendix a Vlynq Protocol SpecificationsSupported Ordered Sets Table A-1. Special 8b/10b Code Groups Vlynq 2.0 Packet Format Figure A-1. Packet Format 10-bit Symbol Representation Field Value Description Vlynq 2.X Packets Vlynq 2.X Packets Write Performance Appendix B Write/Read Performance Burst Size in 32-bit words Data Bytes Table B-1. Scaling FactorsBurst Size Interface Running at 76.5 MHZ Bit Words Mbits/sec Mbytes/sec Table B-3. Relative Performance with Various Latencies Read Performance Appendix C Revision History Table C-1. Document Revision HistoryAdditions/Modifications/Deletions Products Applications DSPRfid