
Returns: Returns 0 (ALTERA_AVALON_FIFO_OK) if successful, ALTERA_AVALON_FIFO_
EVENT_CLEAR_ERROR if unsuccessful.
Description: Clears the specified bits of the event register.
altera_avalon_fifo_write_ienable()
Prototype: int altera_avalon_fifo_write_ienable(alt_u32 address, alt_u32
mask)
Thread-safe: No.
Available
from ISR:
No.
Include: <altera_avalon_fifo_regs.h>, <altera_avalon_fifo_utils.h>
Parameters: address—the base address of the FIFO control slave
mask—the value to write to the interruptenable register. See altera_avalon_
fifo_regs.h for individual interrupt bit masks.
Returns: Returns 0 (ALTERA_AVALON_FIFO_OK) if successful, ALTERA_AVALON_FIFO_
IENABLE_WRITE_ERROR if unsuccessful.
Description: Writes the specified bits of the interruptenable register.
altera_avalon_fifo_write_almostfull()
Prototype:
int altera_avalon_fifo_write_almostfull(alt_u32 address, alt_u32
data)
Thread-safe: No.
Available
from ISR:
No.
Include: <altera_avalon_fifo_regs.h>, <altera_avalon_fifo_utils.h>
Parameters: address—the base address of the FIFO control slave
data—the value for the almost full threshold level
Returns: Returns 0 (ALTERA_AVALON_FIFO_OK) if successful, ALTERA_AVALON_FIFO_
THRESHOLD_WRITE_ERROR if unsuccessful.
Description: Writes data to the almostfull register.
altera_avalon_fifo_write_almostempty()
Prototype:
int altera_avalon_fifo_write_almostempty(alt_u32 address, alt_u23
data)
Thread-safe: No.
Available
from ISR:
No.
UG-01085
2014.24.07
altera_avalon_fifo_write_ienable()
16-15
On-Chip FIFO Memory Core
Altera Corporation
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