Sundance SMT310Q - Manual (Page 40)

Version 2.1 Page 40 of 55 SMT310Q User Manual
The following table shows connector pin-out and cable pair connections. This
is important, as the critical signals must be paired with a ground as shown.
The allocation to twisted pairs is based on grouping the data signals because
they change at the same time, so that crosstalk is not an issue. Each control
signal has its own ground:
Pin Twisted
Pair
RTI
Signal
RTO
Signal
Pin Twisted
Pair
RTI Signal RTO Signal
1 1 I/O_OUT I/O_IN 15 8 D2 D2
2 1 GND GND 16 8 D3 D3
3 2 I/O_IN I/O_OUT 17 9 D4 D4
4 2 GND GND 18 9 D5 D5
5 3 /CSTRB /CSTRB 19 10 D6 D6
6 3 GND GND 20 10 D7 D7
7 4 /CRDY /CRDY 21 11 VCC VCC
8 4 GND GND 22 11 GND GND
9 5 /CREQ /CREQ 23 12 /RST_OUT /RST_IN
10 5 GND GND 24 12 GND GND
11 6 /CACK /CACK 25 13 /RST_IN /RST_OUT
12 6 GND GND 26 13 GND GND
13 7 D0 D0 SHELL - SHIELD SHIELD
14 7 D1 D1
Table 13: Buffered Comport connector pinout
The overall shield is attached to the body of the metal plug shell.
The signal VCC is fused on the board at 1 amp; the fuse automatically resets
when the load is removed.
When the buffered comport is reset to input, pins 1 and 23 are always driven
and pins 3 and 25 are always receivers. When the buffered comport is reset to
output, pins 3 and 25 are always driven and pins 1 and 23 are always receivers.
12.3
JTAG cabling
The 20-way JTAG connectors require the following cabling components:
Cable plugs 3M Scotchflex 10120-6000EL, FES part 038739R
Plug shells 3M Scotchflex 10320-A200-00, FES part 038759A
Cable type 3M Scotchflex KUCKMPVVSB28-10PAIR, FES part 038780G