Digilent 210-251P-BOARD User Manual
Page 2
JTAG-SMT2 Reference Manual
Copyright Digilent, Inc. All rights reserved.
Other product and company names mentioned may be trademarks of their respective owners.
Page 2 of 11
TCK
JTAG-SMT2
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
TCK
JTAG-SMT2
FPGA
TMS
TDI
TDO
GND
VREF
VIO
SS
SCK
MOSI
MISO
3.3V
V
IO
GND
Vdd
USB2
Port
2
4
3
8
1
9
11
The SMT2 improves upon the SMT1 with the addition of three general purpose IO 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 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 HS2 supports SPI modes 0, 1, 2, and 3.
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. Supported features.