PC4-PRESTO • CompactPCI
®
PlusIO • 4
th
Generation Intel
®
Core™-4xxx Processor
CompactPCI J2 (PlusIO)
This connector is a high speed UHM connector, suitable for Gigabit Serial I/O. Refer also to PICMG
®
2.30 CompactPCI
®
PlusIO Specification
Please note, that the CompactPCI
®
PlusIO specification refers to SATA data rates of 1.5Gbps and
3Gbps. EKF has tested successfully also 6G over the backplane with sample devices, but cannot
guarantee this data rate under any condition. Other devices and other backplane brands/types in use
may cause a different result. Hence, for optimum reliability, the Marvell SATA controller will be
initialized for 3Gbps on all ports by default. The J2 backplane SATA 6Gbps configuration would be
available however as a PC4-PRESTO option on special request (altered content for the Marvell
88SE9230 attached SPI Flash). EKF recommends that customers validate their particular SATA 6G
application thoroughly, since SATA channel data errors can decrease the performance considerably.
Warning: Do not operate the standard PC4-PRESTO in systems with a 64-bit CompactPCI
®
backplane.
The J2/P2 pin assignment of a 64-bit CPCI classic backplane differs substantially from a CompactPCI
®
PlusIO backplane, which will result in a short circuit situation on several pins, causing permanent
damage to the PC4-PRESTO.
For use
together with a 64-bit CompactPCI
®
backplane, special
PC4-PRESTO versions are available on customer request, however supporting only 32-bit peripheral
cards. The use of 64-bit CompactPCI
®
peripheral boards may cause problems.
1
25
J1 2mm
H
ar
d
M
etric Conne
ctor
© EKF
2
50.0
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© EK
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250.
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1
22
J2 2m
m Hard Metric Conne
ctor
a
a
b
b
c
c
d
d
e
e
f
f
J2 UHM (Top)
J1 (Bottom)
© EKF -89- ekf.com
