Cypress CYV15G0404RB manual Pin Definitions continued, Page 10 of

CYV15G0404RB

Pin Definitions (continued)

CYV15G0404RB Quad HOTLink II Deserializing Reclocker

Name	IO Characteristics	Signal Description
DATA[7:0]	LVTTL input	Control Data Bus. The DATA[7:0] bus is the input data bus that configures the
	asynchronous,	device. The WREN input writes the values of the DATA[7:0] bus into the latch
	internal pull-up	specified by address location on the ADDR[3:0] bus.[3] Table 3, “Device Configu-
		ration and Control Latch Descriptions,” on page 14 lists the configuration latches
		within the device, and the initialization value of the latches when RESET is
		asserted. Table 4, “Device Control Latch Configuration Table,” on page 16 shows
		the way the latches are mapped in the device.
Internal Device Configuration Latches
RXRATE[A..D]	Internal Latch[4]	Receive Clock Rate Select.
SDASEL[2..1][A..D]	Internal Latch[4]	Signal Detect Amplitude Select.
[1:0]
RXPLLPD[A..D]	Internal Latch[4]	Receive Channel Power Control.
RXBIST[A..D][1:0]	Internal Latch[4]	Receive BIST Disabled.
ROE2[A..D]	Internal Latch[4]	Reclocker Differential Serial Output Driver 2 Enable.
ROE1[A..D]	Internal Latch[4]	Reclocker Differential Serial Output Driver 1 Enable.
GLEN[11..0]	Internal Latch[4]	Global Latch Enable.
FGLEN[2..0]	Internal Latch[4]	Force Global Latch Enable.
Factory Test Modes
SCANEN2	LVTTL input,	Factory Test 2. The SCANEN2 input is for factory testing only. Leave this input
	internal pull down	as a NO CONNECT, or GND only.
TMEN3	LVTTL input,	Factory Test 3. The TMEN3 input is for factory testing only. Leave this input as a
	internal pull down	NO CONNECT, or GND only.
Analog I/O
ROUTA1±	CML Differential	Primary Differential Serial Data Output. The ROUTx1± PECL-compatible CML
ROUTB1±	Output	outputs (+3.3V referenced) can drive terminated transmission lines or standard
ROUTC1±		fiber-optic transmitter modules, and must be AC-coupled for PECL-compatible
ROUTD1±		connections.
ROUTA2±	CML Differential	Secondary Differential Serial Data Output. The ROUTx2± PECL-compatible
ROUTB2±	Output	CML outputs (+3.3V referenced) are capable of driving terminated transmission
ROUTC2±		lines or standard fiber-optic transmitter modules, and must be AC coupled for
ROUTD2±		PECL-compatible connections.
INA1±	Differential Input	Primary Differential Serial Data Input. The INx1± input accepts the serial data
INB1±		stream for deserialization. The INx1± serial stream passes to the receive CDR
INC1±		circuit to extract the data content when INSELx = HIGH.
IND1±
INA2±	Differential Input	Secondary Differential Serial Data Input. The INx2± input accepts the serial
INB2±		data stream for deserialization. The INx2± serial stream passes to the receiver
INC2±		CDR circuit to extract the data content when INSELx = LOW.
IND2±
JTAG Interface
TMS	LVTTL Input,	Test Mode Select. Controls access to the JTAG Test Modes. If TMS is HIGH for
	internal pull up	>5 TCLK cycles, the JTAG test controller resets.
TCLK	LVTTL Input,	JTAG Test Clock.
	internal pull down

Note

4. See Device Configuration and Control Interface for detailed information on the internal latches.

Document #: 38-02102 Rev. *C Page 10 of 27

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