C
URTISS
-W
RIGHT
C
ONTROLS
E
MBEDDED
C
OMPUTING
P
RODUCT
O
VERVIEW
814256 V
ERSION
2 F
EBRUARY
2006
1-17
C
OMPACT
PCI I
NTERFACE
The Compact CHAMP-AV IV does not have an interface to the Compact PCI backplane. The
only signals on J1 and J2 that are used are reset, BDSEL, HEALTHY# and geographical
addressing.
S
ERIAL
P
ORTS
The Compact CHAMP-AV IV provides two EIA-232 asynchronous serial ports, one on Node A
and the other on Node E. The serial port for Node A is implemented using the Discovery III
Multi Protocol Serial Controller (MPSC), while the serial port for Node E is implemented in
the 8540. On-board EIA-232 transceivers are used to convert the electrical signals between
EIA-232 and LVTTL levels.
Nodes A and E,
Serial Port 0 (EIA-
232 Asynchronous
Mode)
Figure 1.7 illustrates the signal names and direction (input or output) associated with Serial
Port 0 on Nodes A and E.
F
IGURE
1.7:
Nodes A and E, Serial Port 0 (EIA-232 Asynchronous Mode)
T
ABLE
1.5:
Serial Port Summary
PORT
SIGNAL NAME
FUNCTION
Node A,
Serial Port 0
A_232_TX
Transmit Data
A_232_RX
Receive Data
Node E,
Serial Port 0
E_232_TX
Transmit Data
E_232_RX
Receive Data
A_232_TX
A_232_RX
TXD0
X-CEIVER
MV64460 Port 0
Node A
RXD0
E_232_TX
E_232_RX
TXD0
X-CEIVER
MPC8540 Port 0
Node E
RXD0
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com