22
GR-UT699 Development Board
User Manual
necessary to ensure that this pin is driven by the host slot. This can be achieved by installing
jumper JP18 on the board, so that the board system reset signal RESETN provides the drive
for the PCIRSTN signal. If the jumper is not installed, a weak (22k) pull up will pull the
PCIRSTN signal high.
2.11.2 Peripheral Slot Configuration
When functioning in a Peripheral slot, the board receives its input clock from the backplane,
and connects its REQN/GNTN signals to the backplane REQN/GNTN signals.
Figure 2-13: Block diagram of PCI Peripheral connections
This requires the jumpers to be installed as follows:
JP7
1-3
JP9
2-3
JP10
2-3
The jumpers in JP8 and JP18 should be not be installed.
© Aeroflex Gaisler AB
March 2013, Rev. 0.6
ASIC
BUFFER
XTAL
33MHz
JP7
PCICLK1
PCICLK2
PCICLK
PCICLKIN
REQ
IDSEL
GNTN
IDSEL
GNT
A
R
B
IT
E
R
CPCI EDGE CONNECTOR
JP9
HOST
PCICLK4
PCICLK5
PCICLK3
PCICLK6
JP10
REQN
3
4
1
2
1
4 3 2
1
4 3 2
GNT3
GNT0
GNT2
GNT1
GNT1N
REQ4
REQ3
REQ1
REQ5N
REQ2N
REQ3N
GNT7
GNT6
GNT5
GNT4
GNT2N
GNT3N
GNT4N
GNT5N
GNT6N
REQ2
REQ1N
REQ0
REQ4N
REQ7
REQ6
REQ5
REQ6N
Содержание GR-UT699
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