I/O Megafunctions

I/O components include clock data recovery (CDR), Phase-Locked Loop (PLL) Definition, double data rate (DDR) Definition, gigabit transceiver block (GXB) Definition, LVDS receiver, LVDS transmitter, PLL reconfiguration, and remote update megafunctions.

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IP Catalog	Megafunction(s)	Comments
ALTASMI_PARALLEL	`altasmi_parallel`	Active serial memory interface parallel megafunction.
ALTCLKCTRL	`altclkctrl`	Clock control block megafunction.
ALTCLKLOCK	`altclklock`	Parameterized PLL megafunction.
ALTDDIO_BIDIR	`altddio_bidir`	DDR bidirectional megafunction.
ALTDDIO_IN	`altddio_in`	DDR input megafunction.
ALTDDIO_OUT	`altddio_out`	DDR output megafunction.
ALTDLL	altdll	delay-locked loop (DLL) Definition megafunction.
ALTDQ	`altdq`	Data strobe megafunction.
ATLDQS	`altdqs`	Parameterized bidirectional data strobe megafunction.
ALTDQ_DQS	atldq_dqs	Parameterized data strobe megafunction.
ALTGX	altgx	High-speed serial interface (HSSI) GXB megafunction.
ALTIOBUF	altiobuf_bidir	Bidirectional I/O buffer megafunction.
	altiobuf_in	Input I/O buffer megafunction.
	altiobuf_out	Output I/O buffer megafunction.
ALTLVDS_RX	`altlvds_rx`	LVDS receiver megafunction.
ALTLVDS_TX	`altlvds_tx`	LVDS transmitter megafunction.
ALTMEMPHY	ALTMEMPHY	External DDR Memory PHY interface megafunction.
ALTOCT	alt_oct	on-chip termination (OCT) Definition megafunction.
ALTPLL	`altpll`	Parameterized PLL megafunction.
ALTPLL_RECONFIG	`altpll_reconfig`	Parameterized PLL reconfiguration megafunction.
ALTREMOTE_UPDATE	`altremote_update`	Parameterized remote update megafunction.
	`altstratixii_oct`	Parameterized OCT megafunction.
ALTTEMP_SENSE	alttemp_sense	Temperature sensing diode (TSD) block megafunction.
MAX^® II oscillator	`altufm_osc`	Oscillator megafunction.