B-14 Sun Netra CP3250 Blade Server User’s Guide • April 2009
ACT_LED# LAN 0 (Management) activity indicator signal for LED (active low).
LINK_LED# LAN 0 (Management) LINK indicator signal for LED (active low).
PCI_CFG PCI Expressbus configuration signal. It shall be grounded on RTMs that use a single x8
PCI Expressbus and pulled up on the ATCAwith 10Kohm resistor to management
power.On RTMs that expect two x4 PCI-Express busses this pin will float (not be
connected). Twox4 PCI-Express busses are intended for RTM implementations that
desireto avoid PCI-Express switch in order to reduce latency.
ARTM# ARTM#signal shall be grounded on ARTMs that implement MMC controller as defined
by AMC.0 specification.This signal shall be pulled up with 10Kohm resistor to
management power on the ATCAnode blade server.
SLAN_TX GBEthernet SerDes transmit differentialpair signals.
SLAN_RX GBEthernetSerDes receive differential pair signals.
PETx PCI-Expresstransmit differential pair signals.
PERx PCI-Expressreceive differential pair signals.
PCI_RST# PCI-Express reset signal. Logic low shall reset downstreamPCI-Express devices on
ARTM.
TCLKA PCI-Telecomclock A 19.44MHz, differential pair into RTM (ATCA CLK2) as defined in
AMC.0 specification.
TCLKB PCI-Telecom clock B 19.44MHz, differential pair out from RTM (ATCACLK3) as defined
in AMC.0 specification.
TCLKC PCI-Telecom clock C 8kHz, differentialpair into RTM (ATCA CLK1) as defined in AMC.0
specification.
TCLKD PCI-Telecomclock D 8kHz, differential pair out from RTM as defined in AMC.0
specification.
FCLKA Fabric clock, as defined in AMC.0 specification. Intended to be used for PCI-Express 100
MHz spreadspectrum clock.
TCK, TMS, TRST#,
TDO, TDI
JTAGsignals. Signal direction shall follow AMC.0 specification.
TABLEB-9 Zone 3 Signal Descriptions (Continued)
SignalName Description