Sundance SMT148FX - Manual (Page 17)

4.1.15 External ComPorts
Four ComPorts are connected to SHB style connectors. Two output-type ComPorts (0
and 1), and two input-type ComPorts (3 and 4) are provided. All 4 ComPorts are
connected to both SHB-style connectors. Connector A is arranged 0, 1, 3 and 4, and
connector B 3, 4, 0 and 1. With this scheme, a simple one-to-one SHB cable can be
used to connect connector A on one 148FX to connector B on another 148FX.
External Comports 0, 1, 3 and 4 are routed to two SHB connectors (Samtec QSH-030-
01) to allow connection to another SMT148FX carrier and its ComPorts. The pin-out
is as follow:
1 STRB_0 2 RDY_0 3 REQ_0 4 ACK_0
5 D0_0 6 D1_0 7 D2_0 8 D3_0
9 D4_0 10 D5_0 11 D6_0 12 D7_0
13 14 15 STRB_1 16 RDY_1
17 REQ_1 18 ACK_1 19 D0_1 20 D1_1
21 D2_1 22 D3_1 23 D4_1 24 D5_1
25 D6_1 26 D7_1 27 28
29 STRB_3 30 RDY_3 31 REQ_3 32 ACK_3
33 D0_3 34 D1_3 35 D2_3 36 D3_3
37 D4_3 38 D5_3 39 D6_3 40 D7_3
41 42 43 STRB_4 44 RDY_4
45 REQ_4 46 ACK_4 47 D0_4 48 D1_4
49 D2_4 50 D3_4 51 D4_4 52 D5_4
53 D6_4 54 D7_4 55 56
57 58 59 60 RESET
Compatible with the 148 and 148LT, an active low RESET signal is provided. When
two 148FX boards are interconnected with a 60 way cable assembly, the RESET is
propagated from one 148FX to the other.
User Manual SMT148FX Page 17 of 48 Last Edited: 03/08/2009 11:42:00