Aim MIL-STD-1553 - 6 Fifo Functions; Table 6-I - FIFO Function Descriptions

MIL-STD-1553 Reference Manual
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Chapter 6 – FIFO Functions
6 FIFO FUNCTIONS
Chapter 6 defines the FIFO function calls of the API S/W Library. The FIFO functions
provide setup and status for FIFO buffers used for 1553 (LS) message transfers. Table
6-I defines the list and definition of FIFO functions. The function calls in this table are
listed in a functional order, however, the detailed descriptions of the FIFO function calls
in the following sections are in alphabetical order.
Table 6-I – FIFO Function Descriptions
Function
Description
ApiCmdFifoIni
Initializes up to 32 FIFOs, each with up to 128 32-word buffers, in shared
ASP Local RAM for 1553 transfers
ApiCmdFifoWrite
Loads/reloads buffers of a FIFO with data
ApiCmdFifoReadStatus
Reads the status of the number of 16-bit words in FIFO to reload
ApiCmdBCAssignFifo
Links a BC transfer to a FIFO. The FIFO becomes the source of the BC
message buffer data transmitted.
ApiCmdRTSAAssignFifo
Links an RT data transmission to a FIFO. The FIFO becomes the source
of the RT message buffer data transmitted.