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Preliminary
Page 6 of 6
SMT327 User Guide
Document Name:
User Guide
Issue : 01
Rev 02
Product Name:
SMT327
Revision Date:
8 August, 2000
Author:
Bill Blyth
Original Date:
30 April 1998
3. Architectural Overview
The SMT327 is a CompactPCI ® version of the SMT320 PCI TIM carrier for standard PCI systems. It
maintains 100% software compatibility with the Sundance SMT320 and Alpha Data ADC-C40-PCI
meaning that existing applications can be easily migrated.
The SMT327 provides 4 TIM positions which can accommodate either single width or double width modules. A dedicated pipe is
hard wired using communication ports 2 and 5 of each TIM, in common with the SMT320. In addition, all other communication
ports are available using FMS-14 connectors for inter-TIM connections.
Two further pipes using ports 0/3 and 1/4 of each TIM can be broken to allow other topologies to be constructed. These pipes
use logic to detect when a cable is inserted to avoid contention between the pipe and the desired connection.
PCI Bus
3 4 0 1
2
5
TIM 1
3 4 0 1
2
5
TIM 2
3 4 0 1
2
5
TIM 3
3 4 0 1
2
5
TIM 4
FMS Connector
Patch Area
FMS Connector
Patch Area
Front Panel Buffered
Ports
Front Panel Buffered
Ports
0
1
3
2
4
5
PCI-C40
Bridge
Initiator
FIFO &
Control
Global Bus
Target
Control
Target
Comm-port
IIOF/Reset
Target
JTAG I/F
ACT8990
TBC
Front Panel
JTAG I/O
All TIMS
= Quick Switch Isolator
Figure 1 Motherboard Architecture