Xilinx Virtex-4 RocketIO User Manual page 52

Chapter 1: RocketIO Transceiver Overview
Table 1-11: RocketIO MGT PMA Attributes (Continued)
Attribute
TXABPMACLKSEL
TXCLKMODE
TXOUTCLK1_USE_SYNC
TXOUTDIV2SEL
TXPHASESEL
TXPLLNDIVSEL
Miscellaneous
RXCDRLOS
RXLKADJ
RXPD
RXRSDPD
TXPD
PMACOREPWRENABLE
PMA_BIT_SLIP
52
Type
REFCLK1, REFCLK2, GREFCLK. Selects reference clock input for
shared Tile transmit PLL.
REFCLK1: Select REFCLK1 input (DRP value 00).
String
REFCLK2: Select REFCLK2 input (DRP value 01).
GREFCLK: Select GREFCLK input (DRP value 10).
See Chapter 2, "Clocking, Timing, and Resets"
4-bit Sets the internal clocking mode. See
Binary and Resets"
FALSE/TRUE.
FALSE: TXOUTCLK1 = Asynchronous PCS TXCLK
Boolean
TRUE: TXOUTCLK1 = Synchronous PCS TXCLK
See Chapter 2, "Clocking, Timing, and Resets"
Frequency acquisition loop output divide. See
Integer
Timing, and Resets"
FALSE/TRUE.
Boolean
FALSE: Selects GREFCLK for synchronization clock
TRUE: Selects PCS TXCLK for synchronization clock
Frequency acquisition loop feedback divide for TX PLL. See
Integer Chapter 2, "Clocking, Timing, and Resets"
value.
6-bit These bits set the threshold value for the signal detector (OOB signal
Binary detect). Use the RocketIO wizard to set this attribute.
5-bit
Reserved. Use the RocketIO wizard to set this attribute.
Binary
FALSE/TRUE. Power-down selector for the receiver.
Boolean
FALSE: Powers up receiver
TRUE: Powers down receiver
FALSE/TRUE. Signal detect logic power-down selector for the
receiver.
Boolean
FALSE: Powers up receiver signal detect logic
TRUE: Powers down receiver signal detect logic
FALSE/TRUE. Power-down selector for the transmitter.
Boolean
FALSE: Powers up transmitter
TRUE: Powers down transmitter
TRUE/FALSE.
Boolean
TRUE: Powers up RXA, RXB, and TXAB
FALSE: Powers down RXA, RXB, and TXAB
FALSE/TRUE.
FALSE: Performs PCS clock phase alignment when RXSYNC is
Boolean
set to logic 1.
TRUE: PCS clock phase alignment is disabled.
www.xilinx.com
Description
for more details.
Chapter 2, "Clocking, Timing,
for more details.
Chapter 2, "Clocking,
for setting the correct value.
for setting the correct
Virtex-4 RocketIO MGT User Guide
UG076 (v4.1) November 2, 2008
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