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Preliminary
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
PCI-C40
Bridge
Initiator
FIFO &
Control
Target
Control
Target
Comm-port
Target
JTAG I/F
ACT8990
TBC
Front Panel
JTAG I/O
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.
Document Name:
User Guide
Product Name:
SMT327
Author:
Bill Blyth
Page 6 of 6
TIM 1
TIM 2
5
2
5
Global Bus
IIOF/Reset
3 4 0 1
3 4 0 1
FMS Connector
Patch Area
All TIMS
0
1
Front Panel Buffered
Ports
Figure 1 Motherboard Architecture
TIM 3
TIM 4
2
5
2
5
3 4 0 1
3 4 0 1
FMS Connector
Patch Area
3
2
4
5
Front Panel Buffered
Ports
= Quick Switch Isolator
Issue : 01
Revision Date:
Original Date:
SMT327 User Guide
2
Rev 02
8 August, 2000
30 April 1998
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