Euresys EureCard Grablink Series, Руководство пользователя

Страница: 21 / 74

GRABLINK Value Description
21
PCI requirements
PCI stands for "Peripheral Component Interconnect" and refers to standardized means to install
an add-on board inside a computer.
Grablink Value is a short-size PCI card to be inserted in a standard PCI slot inside a PC. The
PCI edge connector is compliant with the official PCI specification, revision 2.2. It is 32-bit wide,
operates at 33 MHz maximum and supports both 3.3 V and 5 V signaling systems.
Grablink Value can be used in a 33 MHz or 66 MHz PCI slot like in a 66 MHz, 100 MHz or
133 MHz PCI-X slot. Installing the board on a 66 MHz or faster bus will restrict the bus to
conventional PCI at 33 MHz for all PCI agents installed on this bus.
For more information about PCI and PCI-X, refer to the Euresys application note entitled "PCI
Bus Variation".
Grablink Value uses the +5 t V and +12 t V power supply rails provided by the PCI bus. The +12 t V
supply is only provided to outside devices through the SYSTEM connector. The power
consumption on this rail is therefore user dependent and is protected by a 0.5 t A circuit breaker
with automatic reset. On the SYSTEM connector, a positive 5 t V voltage is also borrowed from
the PC supply. A circuit breaker of 1 t A with automatic reset protects the 5 t V power supply. An
is5 t V supply delivering 150 t mA maximum is available.