ispDOWNLOAD Cables
Figure 3. ispDOWNLOAD Cable In-System Programming Interface for the PC (pDS4102-DL2 or pDS4102-DL2A)
End View
pDS4102-DL2 – Blue Housing
pDS4102-DL2A – Grey Housing
Function
Pin #
To
PC
25-pin
Parallel
Port
Adapter
RJ-45 Connector
Eight Positions
6'
.100" Center-Spacing
Eight Positions
.01 μ f*
Capacitor
V CC
SDO/TDO
SDI/TDI
ispEN/Enable/PROG
TRST
MODE/TMS
GND
1
2
3
4
5
6
7
To
System
Board
SCLK/TCK
8
Note: Capacitor Recommended on System Board
Figure 4. Figure 4. ispDOWNLOAD Cable In-System Programming Interface for the PC (HW7265-DL2 or
HW7265-DL2A)
HW7265-DL2 – Blue Housing
HW7265-DL2A – Grey Housing
End View 1
Overhead View of PC Board
ConnectorPinout
Pin # Function
Function
Pin #
Pin # Function
Function
Pin #
RJ-45 Connector
2
GN D
SCLK/TCK
1
1
SCKL/TCK
GND
2
To
PC
25-pin
Parallel
Port
Adapter
Eight Positions
6'
4
6
8
10
GND
VCC
GND
ispEN/Enable/
MODE/TMS
SDI/TDI
SDO/TDO
TRST
3
5
7
9
3
To
System 5
Board 7
9
MODE/TMS
SDI/TDI
SDO/TDO
TRST
GND
VCC
GND
ispEN/Enable/
4
6
8
10
PROG
PROG
1. For reference purposes, the 2x10 connector on the HW7265-DL2 or HW7265-DL2A is equivalent to Tyco 102387-1. This will interface to
standard 100-mil spacing 2x5 headers, or a 2x5 keyed, recessed male connector such as the 3M N2510-5002RB.
Programming Software
ispVM System/Diamond Programmer is the preferred programming management software tool for all Lattice
devices and download cables. The latest version of ispVM System software or the Lattice Diamond Program-
mer is available for download from the Lattice web site at www.latticesemi.com/software .
Target Board Design Considerations
A 4.7K pull-down resistor is recommended on the TCK connection of the target board. This pull-down is recom-
mended to avoid inadvertent clocking of the TAP controller induced by fast clock edges or as V CC ramps up. This
pull-down is recommended for all Lattice programmable families.
For Lattice device families that feature low power, it is recommended to add a 500 ohm resistor between V CCJ and
www.latticesemi.com/support/faqs/details.cfm?id=2205
The JTAG programming port speed may need to be governed when using the ispDOWNLOAD cables connected to
customer PCBs. This is especially important when there is long PCB routing or with many daisy-chained devices.
The Lattice programming software can adjust the timing of TCK applied to the JTAG programming port from the
cable. This low-precision port setting of TCK depends on many factors, including the PC speed and the type of
cable used (parallel port, USB or USB2). This software feature provides an option to slow the TCK for debug or
noisy environments. A FAQ is available that discusses this in more depth at: ?
www.latticesemi.com/support/faqs/details.cfm?id=306
4
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相关代理商/技术参数
HW-USBN-2B 功能描述:Lattice Programmable Products ispDOWNLOAD? In-System Programmer 制造商:lattice semiconductor corporation 系列:ispDOWNLOAD? 零件状态:有效 类型:系统内编程器 配套使用产品/相关产品:Lattice 可编程产品 内容:编程器 标准包装:1
HW-UW 30 制造商:OK International (OKI) / Metcal 功能描述:WRAPPING AND UNWRAPPING TOOL HAND 制造商:OK International (OKI) / Metcal 功能描述:WRAPPING AND UNWRAPPING TOOL, HAND
HW-UW-18-19 功能描述:手工工具 WRAP-UNWRAP TOOL, 18-19 AWG RoHS:否 制造商:Molex 产品:Extraction Tools 类型: 描述/功能:Extraction tool
HW-UW18-19 制造商:Jonard Industries 功能描述:WRAP-UNWRAP TOOL, 18-19 AWG
HW-UW-20 功能描述:手工工具 WRAP-UNWRAP TOOL, 20 AWG RoHS:否 制造商:Molex 产品:Extraction Tools 类型: 描述/功能:Extraction tool
HW-UW-224 功能描述:手工工具 WRAP-UNWRAP TOOL 22-24 A RoHS:否 制造商:Molex 产品:Extraction Tools 类型: 描述/功能:Extraction tool
HW-UW-224-1 功能描述:手工工具 WRAP-UNWRAP TOOL, 22-24 AWG RoHS:否 制造商:Molex 产品:Extraction Tools 类型: 描述/功能:Extraction tool
HW-UW-224INS 制造商:OK Industries 功能描述:WIRE WRAP TOOL INSUL 22-24AWG 制造商:Jonard Industries 功能描述:WRAP-UNWRAP TOOL, 22-24 AWG INSULATED