Altera_avalon_fifo_read_fifo(), Altera_avalon_fifo_read_fifo() -17 – Altera Embedded Peripherals IP User Manual
Page 172
Returns:
Returns 0 (
ALTERA_AVALON_FIFO_OK
) if successful,
ALTERA_AVALON_FIFO_FULL
if unsuccessful.
Description:
Writes the packet status information to the
write_address
. Only valid when
Enable packet data is on.
altera_avalon_fifo_read_fifo()
Prototype:
int altera_avalon_fifo_read_fifo(alt_u32 read_address, alt_u32
ctrl_address)
Thread-safe:
No.
Available
from ISR:
No.
Include:
<altera_avalon_fifo_regs.h>, <altera_avalon_fifo_utils.h>
Parameters:
read_address
—the base address of the FIFO read slave
ctrl_address
—the base address of the FIFO control slave
Returns:
Returns the data from address offset 0, or 0 if the FIFO is empty.
Description:
Gets the data addressed by
read_address
.
R**altera_avalon_fifo_read_other_info()
Prototype:
int altera_avalon_fifo_read_other_info(alt_u32 read_address)
Thread-safe:
No.
Available
from ISR:
No.
Include:
<altera_avalon_fifo_regs.h>, <altera_avalon_fifo_utils.h>
Parameters:
read_address
—the base address of the FIFO read slave
Returns:
Returns the packet status information from address offset 1 of the Avalon
interface. See the Avalon Interface Specifications section for the ordering of the
packet status information.
Description:
Reads the packet status information from the specified
read_address
. Only
valid when Enable packet data is on.
UG-01085
2014.24.07
altera_avalon_fifo_read_fifo()
16-17
On-Chip FIFO Memory Core
Altera Corporation