Sundance SMT401 - Manual (Page 7)

Released Page 7 of 21 SMT401 PMC TIM Carrier User Guide
Document Name: SMT401 User Guide V1.2.doc Issue : 02 Rev.: 1.11
3.1.1 Sundance Comm-ports (J10, J11, J12, J13, J14, J15)
Sundance compatible comm-ports can be used to make connections over
short distances (30cm or less) to other Sundance comm-ports. The cables
should be fitted such that at one end, the blue insulation is face up, and
at the other, the blue insulation is face down.
3.2 JTAG Input & Output Ports
Both input and output ports for JTAG are be provided, these are compatible
with the SMT327 Compact PCI, SMT328 VME and other Sundance TIM
carriers.
The JTAG interface is designed to operate at up to 10MHz across up to 4
SMT401 motherboards.
There is no re-timing at the TDO output of each board in order to provide a
seamless chain of processors. This may limit the upper operating frequency
of the JTAG controller. By default this frequency will be 8.33MHz
(PCI_CLK/4) or less, depending on the PCI_CLK on the host.
Pin Signal Direction Description
1 TDI IN JTAG data in
2 GND
3 TDO OUT JTAG data out
4 GND
5 TMS IN JTAG Test mode select
6 GND
7 TCK IN JTAG clock, up to 10MHz
8 GND
9 TCK_RET OUT JTAG clock return
10 GND
11 -TRST IN JTAG Reset
12 GND
13 -RESET IN Board Reset in
14 PD OUT Presence detect, +5V 1A fused
15 -DETECT IN Detect external JTAG controller when grounded
16 CONFIG OPEN COLL Global open collector C4x CONFIG
17 EMU0 OUT Buffered EMU0 output
18 EMU1 OUT Buffered EMU1 output
19 SPARE1
20 SPARE2
Table 1 JTAG Slave Port (Input)
Product Name: SMT401 Revision Date: 07 December 2004
Author: Mark I. Cartlidge (Updated by SM, added JTAG slave section) Original Date: 12 May 1999