Block

Mask

Description

This block receives data from transmission virtual link ports on five different port types: sampling, queuing, SAP UDP, SAP IP, and SAP MAC.

Note: The CotsMac (COTS Ethernet) type of message port is not implemented in this block.

The functionality of each port type of the transmit block is defined below.

Sampling	The UDP Sampling port reads the ARINC653 Communication UDP message by sampling mode.
Queuing	The UDP Queuing port reads the ARINC653 Communication UDP message by queuing mode.
SAP UDP	The SAP UDP port reads the UDP message.
SAP IP	The SAP IP port reads IP Packet payloads.
SAP MAC	The SAP MAC port reads Ethernet MAC frame payloads.

Parameters

ES ID	A unique ID (0-31) of a reception end system device.
Port ID	A unique ID of the message port (0-1023) of a reception virtual link.
Port Type	The port type specifies the appropriate IP protocol on which the ES device communicates.
Sample Time	It indicates the frequency of time the block generates outputs or updates its internal state.
Max Data Bytes	Maximum data bytes a reception port can receive

Maximum data bytes for each port type are as follows:

Sampling Port	1471 bytes (limited by Sampling port configuration and sequence numbering)
Queuing Port	8192 bytes (limited by Queuing port configuration)
SAP UDP Port	8192 (limited by SAP UDP port configuration)
SAP IP Port	8200 (limited by SAP IP port configuration)
SAP MAC Port	1500 (limited by SAP MAC port configuration and sequence numbering)

Note: The maximum value is limited by the parameter Max Message Size from the configuration. If the Max Message Size of Rx Port Configuration is set to 300 bytes, then the maximum value of the data length must be 300 bytes or below.

Inputs

There are no inputs.

Outputs

The outputs of this block are:

Data received at the reception port	The data format is specified to five double (64-bit) type arrays, Simulink’s real_T type. The ranges of values are: Day: 0 - 4,294,967,295 (the range of uint32_t) Hour: 0 - 23 Min: 0 - 59 Sec: 0 - 59 NanoSec: 0 - 999,999,999
Timestamp at which data was received	Timestamp uses DAY:HOUR:MIN:SEC:NANOSEC format.
Bytes read	Actual number of message payload bytes read from the port.
Source IP	Source IP address of the message read. This output is valid for SAP UDP and SAP IP port types only.
Source Port	Source port of the message read. This output is valid for SAP UDP port only.
Errors	To learn more about the errors, see the common error codes.

Characteristics and Limitations

ES ID and Port ID should be the same as the one in the configuration (.hex) file of the A664p7 Configure block.
The maximum data byte is limited by port configurations.

RT-LAB Documentation

a664p7 Receive