Digilent 410-308P User Manual
Page 2
JTAG-SMT2-NC Reference Manual
Copyright Digilent, Inc. All rights reserved.
Other product and company names mentioned may be trademarks of their respective owners.
Page 2 of 14
The SMT2-NC improves upon the SMT1 with the addition of three general purpose I/O pins (GPIO0 – GPIO2) and
support for interfacing IEEE 1149.7-2009 JTAG targets in both 2 and 4-wire modes.
In addition to supporting JTAG, the JTAG-SMT2-NC also features eight highly configurable Serial Peripheral
Interface (SPI) ports that allow communication with virtually any SPI peripheral (see Fig. 2). All eight SPI ports
share the same SCK, MOSI, and MISO pins, so users may enable only one port at any given time. Table 1
summarizes the features supported by each port. The SMT2-NC supports SPI modes 0, 1, 2, and 3.
TCK
JTAG-SMT2-NC
FPGA
TMS
TDI
TDO
GND
VREF
VIO
TMS
TCK
TDI
TDO
3.3V
V
IO
GND
Vdd
USB2
Port
2
4
3
8
1
9
11
Chip Select
Signal
Port
Number
SPI
Mode
Shift
LSB
First
Shift MSB
First
Selectable
SCK
Frequency
Max SCK
Frequency
Min SCK
Frequency
Inter-byte
Delay
TMS/CS0
0
0
Yes
Yes
Yes
30 MHz
8 KHz
0 – 1000 µS
2
Yes
Yes
Yes
30 MHz
8 KHz
0 – 1000 µS
1
0
Yes
Yes
Yes
2.066 MHz
485 KHz
0 – 1000 µS
1
Yes
Yes
Yes
2.066 MHz
485 KHz
0 – 1000 µS
2
Yes
Yes
Yes
2.066 MHz
485 KHz
0 – 1000 µS
3
Yes
Yes
Yes
2.066 MHz
485 KHz
0 – 1000 µS
GPIO0/CS1
2
0
Yes
Yes
Yes
30 MHz
8 KHz
0 – 1000 µS
2
Yes
Yes
Yes
30 MHz
8 KHz
0 – 1000 µS
3
0
Yes
Yes
Yes
2.066 MHz
485 KHz
0 – 1000 µS
1
Yes
Yes
Yes
2.066 MHz
485 KHz
0 – 1000 µS
2
Yes
Yes
Yes
2.066 MHz
485 KHz
0 – 1000 µS
3
Yes
Yes
Yes
2.066 MHz
485 KHz
0 – 1000 µS
GPIO1/CS2
4
0
Yes
Yes
Yes
30 MHz
8 KHz
0 – 1000 µS
2
Yes
Yes
Yes
30 MHz
8 KHz
0 – 1000 µS
5
0
Yes
Yes
Yes
2.066 MHz
485 KHz
0 – 1000 µS
1
Yes
Yes
Yes
2.066 MHz
485 KHz
0 – 1000 µS
2
Yes
Yes
Yes
2.066 MHz
485 KHz
0 – 1000 µS
3
Yes
Yes
Yes
2.066 MHz
485 KHz
0 – 1000 µS
GPIO2/CS3
6
0
Yes
Yes
Yes
30 MHz
8 KHz
0 – 1000 µS
2
Yes
Yes
Yes
30 MHz
8 KHz
0 – 1000 µS
7
0
Yes
Yes
Yes
2.066 MHz
485 KHz
0 – 1000 µS
1
Yes
Yes
Yes
2.066 MHz
485 KHz
0 – 1000 µS
2
Yes
Yes
Yes
2.066 MHz
485 KHz
0 – 1000 µS
3
Yes
Yes
Yes
2.066 MHz
485 KHz
0 – 1000 µS
Figure 1. JTAG-SMT2 port connections.
Figure 2. SMT2 SPI port connections.
Table 1. Features supported by each port.