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Texas Instruments SPRU938B manual Interrupt Pending/Set Register Intpendset, Intset

Models: SPRU938B

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VLYNQ Port Registers

3.6Interrupt Pending/Set Register (INTPENDSET)

The interrupt pending/set register (INTPENDSET) indicates the pending interrupt status when the INTLOCAL bit in the control register (CTRL) is not set. When the interrupt packet is forwarded on the serial interface, these bits are cleared. The INTPENDSET is shown in Figure 14 and described in Table 11.

Figure 14. Interrupt Pending/Set Register (INTPENDSET)

31

0

INTSET

R/W-0

LEGEND: R/W = Read/Write; -n= value after reset

Table 11. Interrupt Pending/Set Register (INTPENDSET) Field Descriptions

Bit	Field	Value	Description
31-0	INTSET	0-FFFF FFFFh	This field indicates the unmasked status of each pending interrupt.
		0	Writing a 0 has no effect.
		1	Writing a 1 to any bit:
			if INTLOCAL = 0 in CTRL, interrupt packet is sent on the serial interface.
			If INTLOCAL = 1 in CTRL, VLYNQ module interrupt (VLQINT) is asserted.

3.7Interrupt Pointer Register (INTPTR)

The interrupt pointer register (INTPTR) typically contains the address of the interrupt pending/set register (INTPENDSET) within the VLYNQ module. To program INTPTR to point to INTPENDSET, program a value of 14h (the offset of INTPENDSET). Additionally, the INT2CFG bit in the control register (CTRL) should be set to 1. The INTPTR is shown in Figure 15 and described in Table 12.

Figure 15. Interrupt Pointer Register (INTPTR)

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

Table 12. Interrupt Pointer Register (INTPTR) Field Descriptions

Bit	Field	Value	Description
31-2	INTPTR	0-3FFF FFFFh	Interrupt pointer. Program this register with the address (14h) of the interrupt pending/set
			register (INTPENDSET).
1-0	Reserved	0	Reserved. Always read as 0. Writes have no effect.

SPRU938B –September 2007	VLYNQ Port	31
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Texas Instruments SPRU938B manual Interrupt Pending/Set Register Intpendset, Interrupt Pointer Register Intptr, Intset

Contents

Users Guide Submit Documentation Feedback Contents Appendix C Appendix B List of Figures List of Tables Read This First Purpose of the Peripheral Features Industry Standards Compliance Statement Functional Block Diagram Clock Control External Clock Block Diagram Protocol Description Signal DescriptionsVlynq Signal Descriptions Pin Multiplexing Vlynq Module Structure Vlynq Functional Description Write Operations Read Operations Auto-Negotiation Initialization Address Translation Register DM643x Vlynq Module Address Translation Example Single Mapped Region Remote Vlynq Module DM643x Vlynq Module Example 1. Address Translation Example Flow Control Interrupt Support Reset ConsiderationsSoftware Reset Considerations Hardware Reset Considerations Writes to Interrupt Pending/Set Register Interrupt Generation Mechanism Block Diagram Edma Event Support Serial Bus Error InterruptsRemote Interrupts Endianness Considerations Power ManagementEmulation Considerations Acronym Register Description Vlynq Register Address SpaceVlynq Port Controller Registers Block Name Start Address End Address Size Bit Field Value Description Revision Register RevidRevision Register Revid Field Descriptions Revmaj Revmin Control Register Ctrl Field Descriptions Control Register Ctrl Bit Field Aoptdisable Status Register Stat Field Descriptions Status Register Stat Lerror No error Instat Interrupt Priority Vector Status/Clear Register IntpriInterrupt Status/Clear Register Intstatclr Nointpend Intset Interrupt Pending/Set Register IntpendsetInterrupt Pointer Register Intptr Interrupt Pointer Register Intptr Field Descriptions Address Map Register XAM Field Descriptions Transmit Address Map Register XAMTxadrmap RXADROFFSET1 Receive Address Map Size 1 Register RAMS1Receive Address Map Offset 1 Register RAMO1 RXADRSIZE1 RXADROFFSET2 Receive Address Map Size 2 Register RAMS2Receive Address Map Offset 2 Register RAMO2 RXADRSIZE2 RXADROFFSET3 Receive Address Map Size 3 Register RAMS3Receive Address Map Offset 3 Register RAMO3 RXADRSIZE3 RXADROFFSET4 Receive Address Map Size 4 Register RAMS4Receive Address Map Offset 4 Register RAMO4 RXADRSIZE4 Auto Negotiation Register Autngo Field Descriptions Chip Version Register ChipverAuto Negotiation Register Autngo Chip Version Register Chipver Field Descriptions Vlynq Port Remote Controller Registers Table A-1. Special 8b/10b Code Groups IntroductionSpecial 8b/10b Code Groups Supported Ordered Sets 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 Bit Words Mbits/sec Mbytes/sec Burst Size Interface Running at 76.5 MHZ Latency μsec Read PerformanceTable B-3. Relative Performance with Various Latencies Throughput Reference Additions/Modifications/Deletions Table C-1. Document Revision History DSP Products ApplicationsRfid