Jtag Control Dip Switch - Altera Cyclone III 3C120 Reference Manual

Chapter 2: Board Components
Configuration, Status, and Setup Elements
Table 2–11. JTAG Control Switch Component Reference and Manufacturing Information
Board
Reference
SW3
© March 2009
Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com.
Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from
■ POWER SELECT rotary switch
■ PGM CONFIG SELECT rotary switch
■ Speaker header

JTAG Control DIP Switch

Board reference SW3 is a 4-position JTAG control DIP switch, and it is provided to
either remove or include devices in the active JTAG chain. Additionally, JTAG control
DIP switch is also used to disable the embedded USB-Blaster cable when using an
external USB-Blaster cable
Table 2–10. JTAG Control DIP Switch Signal Name and Description
DIP Switch
SW3.1
FPGA_BYPASS
SW3.2
HSMA_BYPASS
SW3.3
HSMB_BYPASS
SW3.4
MAX_EN
Because the JTAG chain also contains the two HSMC, the SW3 DIP switch allows data
to bypass the HSMC interfaces as well as the MAX II CPLD. See
Over USB" on page
f
For information about user-defined DIP switches, refer to
Switches" on page
Table 2–11 lists the JTAG control switch component reference and manufacturing
information.
Description
Four-position slider DIP switch
Altera Corporation
(Table 2–10).
Signal Name
Includes or removes FPGA from embedded USB-Blaster
JTAG chain.
1 – FPGA included in JTAG chain
0 – FPGA not included in JTAG chain
Includes or removes HSMA Port from embedded
USB-Blaster JTAG chain.
1 – HSMA Port included in JTAG chain
0 – HSMA Port not included in JTAG chain
Includes or removes HSMB Port from embedded
USB-Blaster JTAG chain.
1 – HSMB Port included in JTAG chain
0 – HSMB Port not included in JTAG chain
Enables embedded USB-Blaster JTAG chain.
1 – Embedded USB-Blaster connected to JTAG chain
0 – Embedded USB-Blaster disconnected from JTAG chain
2–15.
2–27.
Manufacturer
C&K Components ITT industries
Description
"FPGA Programming
"User-Defined DIP
Manufacturing
Part Number
TDA04H0SB1
Cyclone III 3C120 Development Board Reference Manual
2–19