Connection Of 5V Device To Pci Bus - Epson SCE8720C Series Hardware Manual

A.1.3 Connection of 5V device to PCI bus
SCE8720C only supports the 3.3V PCI bus. Therefore, 5V PCI bus cannot be connected
to the PCI bus. To connect a 5V PCI device, use the level converter which converts
signals from 5V device to 3.3V, as shown in the circuit below.
CARD-PCI
PCICLK
PCICLK
Rev.A
4.3V
+5
regulator
3V
PCI
(Eg. quality semiconductor
Figure A.3 Connection method of 5V PCI device
CARD-PCI/GX Hardware Manual
(RN5RL43A)
V
CC
Level
conver-
ter
QS32X245)
EPSON
5V
PCI
device
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