Altera ALTDLL - Manual (Page 81)

4–45 Chapter 4: Functional Description
ALTDQ_DQS Megafunction Ports
ALTDLL and ALTDQ_DQS Megafunctions User Guide © February 2012 Altera Corporation
DQS_CONFIG/IO_CONFIG Megafunction Ports
Table 4–19 summarizes all the ports on the megafunction that configure the
DQS_CONFIG / IO_CONFIG path.
Table 4–19. Megafunction Ports to Configure DQS_CONFIG/IO_CONFIG Path
Port Name Type
Optional/
Required
Default Description
bidir_dq_io_config_ena
[n
b
-1..0]
Input Optional V
CC
Enable signal for the BIDIR_DQ_IO_CONFIG
block.
config_clk Input Optional GND Clock signal for the DQS_CONFIG and
IO_CONFIG blocks.
config_datain Input Optional GND Input signal for the DQS_CONFIG and
IO_CONFIG blocks.
config_update Input Optional GND Update signal for the DQS_CONFIG and
IO_CONFIG blocks.
dqs_config_ena Input Optional V
CC
Enable signal for the DQS_CONFIG block.
dqs_io_config_ena Input Optional V
CC
Enable signal for the DQS_IO_CONFIG block.
dqsn_io_config_ena Input Optional V
CC
Enable signal for the DQSN_IO_CONFIG block.
input_dq_io_config_ena
[n
b
-1..0]
Input Optional V
CC
Enable signal for the INPUT_DQ_IO_CONFIG
block.
output_dq_io_config_ena
[n
b
-1..0]
Input Optional V
CC
Enable signal for the OUTPUT_DQ_IO_CONFIG
block.