• NIFGEN_ATTRIBUTE_P2P_ENABLED
• NIFGEN_ATTRIBUTE_P2P_DESTINATION_CHANNELS
• NIFGEN_ATTRIBUTE_P2P_ENDPOINT_SIZE
• NIFGEN_ATTRIBUTE_P2P_SPACE_AVAILABLE_IN_ENDPOINT
• NIFGEN_ATTRIBUTE_P2P_MOST_SPACE_AVAILABLE_IN_ENDPOINT
• NIFGEN_ATTRIBUTE_P2P_ENDPOINT_COUNT
• NIFGEN_ATTRIBUTE_P2P_DATA_TRANSFER_PERMISSION_INTERVAL
• NIFGEN_ATTRIBUTE_P2P_DATA_TRANSFER_PERMISSION_INITIAL_CREDITS
• NIFGEN_ATTRIBUTE_P2P_MANUAL_CONFIGURATION_ENABLED
• NIFGEN_ATTRIBUTE_P2P_DATA_TRANSFER_PERMISSION_ADDRESS
• NIFGEN_ATTRIBUTE_P2P_DATA_TRANSFER_PERMISSION_ADDRESS_TYPE
• NIFGEN_ATTRIBUTE_P2P_ENDPOINT_WINDOW_ADDRESS
• NIFGEN_ATTRIBUTE_P2P_ENDPOINT_WINDOW_ADDRESS_TYPE
• NIFGEN_ATTRIBUTE_P2P_ENDPOINT_WINDOW_SIZE
• NIFGEN_ATTRIBUTE_P2P_DONE_NOTIFICATION_ADDRESS
• NIFGEN_ATTRIBUTE_P2P_DONE_NOTIFICATION_ADDRESS_TYPE
• NIFGEN_ATTRIBUTE_P2P_DONE_NOTIFICATION_VALUE

Numeric Value	Data Type	Access	Applies to	Coercion	High-Level Functions
1150391	ViBoolean	R/W	Endpoint	None	None

Specifies whether the signal generator reads data from the peer-to-peer endpoint, as opposed to the typical method of reading it from the onboard memory. This attribute is endpoint-based.

Defined Values

VI_TRUE	Peer-to-peer data streaming is enabled.
VI_FALSE	Peer-to-peer data streaming is disabled.

Default Value: VI_FALSE

Numeric Value	Data Type	Access	Applies to	Coercion	High-Level Functions
1150392	ViString	R/W	Endpoint	None	None

Specifies which channels are written to by a peer-to-peer endpoint. If multiple channels are specified, data is deinterleaved to each channel. Channels are configured using the niFgen_ConfigureChannels function. This attribute is endpoint-based.

Default Value: "" (all channels are configured)

Numeric Value	Data Type	Access	Applies to	Coercion	High-Level Functions
1150393	ViInt32	RO	Endpoint	None	None

Returns the size, in samples per channel, of the peer-to-peer endpoint. This attribute is endpoint-based.

Numeric Value	Data Type	Access	Applies to	Coercion	High-Level Functions
1150394	ViInt32	RO	Endpoint	None	None

Returns the current space available in the endpoint in samples per channel. You can use this attribute when priming the endpoint with initial data through the niFgen_WriteP2PEndpointI16 function to determine how many samples you can write. You can also use this attribute to characterize the performance and measure the latency of the peer-to-peer stream as data moves across the bus. This attribute is endpoint-based.

Numeric Value	Data Type	Access	Applies to	Coercion	High-Level Functions
1150395	ViInt32	RO	Endpoint	None	None

Returns the largest number of samples per channel available in the endpoint since this attribute was last read. Use this attribute to determine how much endpoint space to use as a buffer against PCI Express bus traffic latencies by reading the attribute and keeping track of the largest value returned. This attribute is endpoint-based.

If you wish to minimize the latency for data to move through the endpoint and be generated by the signal generator, use the NIFGEN_ATTRIBUTE_P2P_DATA_TRANSFER_PERMISSION_INITIAL_CREDITS attribute to grant fewer initial credits than the default of the entire endpoint size.

Numeric Value	Data Type	Access	Applies to	Coercion	High-Level Functions
1150396	ViInt32	RO	Channel	None	None

Returns the number of peer-to-peer FIFO endpoints supported by the device.

Numeric Value	Data Type	Access	Applies to	Coercion	High-Level Functions
1150400	ViInt32	R/W	Endpoint	Yes	None

Specifies the interval, in samples per channel, at which the signal generator issues credits to allow the writer peer to transfer data over the bus into the configured endpoint. Refer to the Flow Control topic in the NI Signal Generators Help for more information. This attribute is coerced up by NI-FGEN to the nearest 128 byte boundary. This attribute is endpoint-based.

Default Value: 1,024 samples per channel

Numeric Value	Data Type	Access	Applies to	Coercion	High-Level Functions
1150408	ViInt32	R/W	Endpoint	Yes	None

Specifies the initial amount of data, in samples per channel, that the writer peer is allowed to transfer over the bus into the configured endpoint when the peer-to-peer data stream is enabled. If you do not set this property and the endpoint is empty, credits equal to the full size of the endpoint are issued to the writer peer. If data has been written to the endpoint using the niFgen_WriteP2PEndpointI16 function prior to enabling the stream, credits equal to the remaining space available in the endpoint are issued to the writer peer. This attribute is coerced up by NI-FGEN to 8-byte boundaries.

Numeric Value	Data Type	Access	Applies to	Coercion	High-Level Functions
1150397	ViBoolean	R/W	Channel	None	None

Enables/disables manual configuration for a peer-to-peer endpoint. Enabling this attribute disables automatic NI-P2P stream manager flow control and Done Notifications.

Numeric Value	Data Type	Access	Applies to	Coercion	High-Level Functions
1150398	ViInt64	WO	Endpoint	None	None

Indicates the address in the writer peer to which the signal generator should send data transfer permission credits. This attribute is endpoint-based.

Note:  You can only use this attribute when the NIFGEN_ATTRIBUTE_P2P_MANUAL_CONFIGURATION_ENABLED attribute is set to VI_TRUE.

Numeric Value	Data Type	Access	Applies to	Coercion	High-Level Functions
1150399	ViInt32	R/W	Endpoint	None	None

Specifies the type of address for the NIFGEN_ATTRIBUTE_P2P_DATA_TRANSFER_PERMISSION_ADDRESS attribute. This attribute is endpoint-based.

Note:  You can only use this attribute when the NIFGEN_ATTRIBUTE_P2P_MANUAL_CONFIGURATION_ENABLED attribute is set to VI_TRUE.

Defined Values

NIFGEN_VAL_PHYSICAL	Specifies a physical memory address.
NIFGEN_VAL_VIRTUAL	Specifies a virtual memory address.

Default Value: NIFGEN_VAL_VIRTUAL

Numeric Value	Data Type	Access	Applies to	Coercion	High-Level Functions
1150401	ViInt64	RO	Endpoint	None	None

Specifies the signal generator address where endpoint data is sent by the writer peer. The type of this address is specified by the NIFGEN_ATTRIBUTE_P2P_ENDPOINT_WINDOW_ADDRESS_TYPE attribute. This attribute is endpoint-based.

Note:  You can only use this attribute when the NIFGEN_ATTRIBUTE_P2P_MANUAL_CONFIGURATION_ENABLED attribute is set to VI_TRUE.

Numeric Value	Data Type	Access	Applies to	Coercion	High-Level Functions
1150402	ViInt32	R/W	Endpoint	None	None

Specifies the type of the NIFGEN_ATTRIBUTE_P2P_ENDPOINT_WINDOW_ADDRESS attribute. This attribute is endpoint-based.

Note:  You can only use this attribute when the NIFGEN_ATTRIBUTE_P2P_MANUAL_CONFIGURATION_ENABLED attribute is set to VI_TRUE.

Defined Values

NIFGEN_VAL_PHYSICAL	Specifies a physical memory address.
NIFGEN_VAL_VIRTUAL	Specifies a virtual memory address.

Default Value: NIFGEN_VAL_VIRTUAL

Numeric Value	Data Type	Access	Applies to	Coercion	High-Level Functions
1150403	ViInt32	RO	Endpoint	None	None

Specifies the size, in bytes, of the endpoint window. The endpoint window is also described by the NIFGEN_ATTRIBUTE_P2P_ENDPOINT_WINDOW_ADDRESS and NIFGEN_ATTRIBUTE_P2P_ENDPOINT_WINDOW_ADDRESS_TYPE attributes. This attribute is endpoint-based.

Note:  You can only use this attribute when the NIFGEN_ATTRIBUTE_P2P_MANUAL_CONFIGURATION_ENABLED attribute is set to VI_TRUE.

Numeric Value	Data Type	Access	Applies to	Coercion	High-Level Functions
1150405	ViInt64	RO	Endpoint	None	None

Specifies the signal generator address to which the writer peer sends the NIFGEN_ATTRIBUTE_P2P_DONE_NOTIFICATION_VALUE. This attribute is endpoint-based. Refer to the Stopping a Peer-to-Peer Generation topic in the NI Signal Generators Help for more information about using this attribute.

Note:  You can use this attribute only when the NIFGEN_ATTRIBUTE_P2P_MANUAL_CONFIGURATION_ENABLED attribute is set to VI_TRUE.

Numeric Value	Data Type	Access	Applies to	Coercion	High-Level Functions
1150406	ViInt32	R/W	Endpoint	None	None

Specifies the address type of the NIFGEN_ATTRIBUTE_P2P_DONE_NOTIFICATION_ADDRESS attribute. This attribute is endpoint-based. Refer to the Stopping a Peer-to-Peer Generation topic in the NI Signal Generators Help for more information about using this attribute.

Note:  You can only use this attribute when the NIFGEN_ATTRIBUTE_P2P_MANUAL_CONFIGURATION_ENABLED attribute is set to VI_TRUE.

Defined Values

NIFGEN_VAL_PHYSICAL	Specifies a physical memory address.
NIFGEN_VAL_VIRTUAL	Specifies a virtual memory address.

Default Value: NIFGEN_VAL_VIRTUAL

Numeric Value	Data Type	Access	Applies to	Coercion	High-Level Functions
1150407	ViInt32	RO	Endpoint	None	None

Specifies the value the writer peer should write to the address specified by the NIFGEN_ATTRIBUTE_P2P_DONE_NOTIFICATION_ADDRESS attribute. This attribute is endpoint-based. Refer to the Stopping a Peer-to-Peer Generation topic in the NI Signal Generators Help for more information about using this attribute.

Note:  You can only use this attribute when the NIFGEN_ATTRIBUTE_P2P_MANUAL_CONFIGURATION_ENABLED attribute is set to VI_TRUE.