pci9080 chip

["Harkema, G.A." <G.A.Harkema@tue.nl>]

Hello,
we are developing a PCI board to controll a data aquasition system. On
the PCI board is the PCI9080 chip. On the local bus of the PCI9080 is
only a I/O controller whitch is implemented in a FLEX7000 EPLD from
Altera. There is no EEPROM placed on the board. We are using the PCI
chip in "C mode". Local bus input signal lines have the following signal
levels:
ADMODE             	= VCC
BIGEND#               	= VCC
BREQ                    = GND
DREQ[1:0]#          	= VCC
LRESETI#             	= VCC
NB#                     = VCC
S[2:0]                  = GND
WAITI#                	= VCC
BTERM#              	= VCC
LLOCK#                	= VCC
LHOLDA              	= GND
EOT0#                   = VCC
EOT1#                   = VCC
READYI#                	= VCC
LINTI#                  = VCC

All tri-state I/O pins except LD[31:0], LA[31:2] and LBE[3:0]# have a
pull-up resistor to VCC (10k), all tri-state I/O from the EPLD is
permently disabled.

All PCI bus signals are connected to the PCI bus (PCI bus = 32 bit, 33
MHz, 5 V).

The local bus clock frequency is 20 MHz.

When booting the computer system we see the following:
LRESET0# goes low for about 160 ms.
After this the EESK clock starts and the EECS goes high.
After 11 EESK clocks EECS goes low and after 13 EESK clocks EESK stops
clocking.
??? what is happening according the datasheet of the PCI9080, page 117,
EESK is a continous clock ???

During EEPROM initialization the PCI9080 respons on the PCI bus as a
disconnect.
??? according the datasheet page 14 is should respons as a retry ???

After a while (we dont now how long) the respons to the PCI bus is a
retry, and the computer system hangs (in the boot sequence).
??? why is respons of the PCI9080 chip to the PCI bus a retry, the
EEPROM is not loaded and the NB# pin is connected to ground ???

Please help us.

Kindest regards

Gerard A Harkema