
C
URTISS
-W
RIGHT
C
ONTROLS
E
MBEDDED
C
OMPUTING
PMC-605 PCI-P0 B
RIDGE
M
ODULE
809524 R
EVISION
D F
EBRUARY
2009
1-3
S
UMMARY
OF
F
EATURES
The PMC-605 has the following major features:
Clock Speed
The Intel 21554 PCI-to-PCI Bridge device supports a clock speed of 33 MHz on the Secondary
PCI Bus and 33 MHz on the Primary PCI bus. The Primary PCI bus connects to the PCI-P0
bus and the Secondary PCI bus interface connects to the Host PCI bus.
Bus Arbitration
The PMC-605 is dynamically configured during power-up or reboot to act as the bus arbiter
when placed in the PCI-P0 backplane’s System Slot. The PMC-605 uses a parallel arbitration
scheme.
PCI Bus Clock
The PMC-605 can generate a PCI bus clock for the PCI-P0 bus or receive it from an external
source. The PCI bus clock is dynamically enabled when placed in the PCI-P0 backplane’s
System Slot and is disabled when placed in a Peripheral Slot.
Synchronous and
Asynchronous
Operation
The PCI-P0 bus can be synchronous to the Primary PCI bus or operate completely
asynchronously according to the configuration of its PCI bus clock source.
System Slot
Termination
The PMC-605 is dynamically configured during power-up or reboot to terminate signals as
necessary for the PCI bus when placed in the PCI-P0 backplane’s System Slot.
Power
Requirements
The PCI-P0 bus is 3.3 V signalling, 5 V tolerant. The PMC-605 is powered via the basecard’s
+5 V rail; an on-board regulator pr3.3 V.
Configuration
EEPROM
A serial EEPROM stores basic configuration information for the 21554
PCI-to-PCI Bridge device.
JTAG Support
The CPLD supports
the IEEE Std 1149.1 boundary scan (JTAG) and is In-System
Programmable (if so configured by the fitting of optional zero ohm resistors) through the
host SBC JTAG interface. If the optional zero ohm resistors are not fitted, the CPLD must be
programmed through an on-board header. Note that the Intel 21554 is not included as part
of the JTAG loop.
Ruggedization
Levels
The PMC-605 is available in air-cooled and conduction-cooled versions.
LED
The PMC-605 has a green software-controllable power-on LED.
Note
More information on the PMC-605 features listed above is provided in the following sections.
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