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Hardware Description
Table 2-11. Connections of ATF15xx 84-pin PLCC to the Switches for I/O Pins
Push Button #
SW1
SW2
SW3
SW4
SW5
SW6
SW7
SW8
PLD Pin #
54
51
49
44
9
6
4
80
Table 2-12. Connections of ATF15xx 100-pin TQFP to the Switches for I/O Pins
Push Button #
SW1
SW2
SW3
SW4
SW5
SW6
SW7
SW8
PLD Pin #
48
36
44
37
96
98
84
99
2.1.4
2-8
Push-button
Switches with
Selectable Jumpers
for GCLR and OE1
Pins
Atmel CPLD Development/Programmer Board also contains two push-button switches
for the Global Clear (GCLR) and Output Enable (OE1) pins of the CPLD. They allow the
designers to control the logic states of the OE1 and GCLR inputs of the ATF15xx CPLD.
These two switches are labeled SW-GCLR and SW-GOE1 on the Atmel CPLD Develop-
ment/Programmer Board. One end of the SW-GCLR input push-button switch is
connected to ground (GND). The other end of the push-button switch is connected to a
pull-up resistor to VCCIO, and then connected to the GCLR dedicated input pin of the
ATF15xx. It is intended to be used as an active-low reset signal to reset the registers in
the ATF15xx with the JPGCLR selectable jumper set. Similarly, one end of the SW-
GOE1 input push-button switch is connected to ground (GND). The other end of the
push-button switch is connected to a pull-up resistor to VCCIO, and then connected to
the OE1 dedicated input pin of the ATF15xx. It is intended to be used as an active-low
output enable signal to control the enabling/disabling of the tri-state output buffers in the
ATF15xx with the JPGOE selectable jumper set. Figure 2-5 on page 2-9 is the circuit
diagram of these two push-button switches and the jumpers for the GCLR and OE1
pins.
If any of these push-button switches is pressed and the corresponding jumper is set,
then the specific I/O of the CPLD will be driven to a logic low state. Since each push-
button is also connected to a pull-up resistor, the corresponding CPLD input will have a
logic high state if the push-button switch is not pressed with the corresponding select-
able jumper set. If the selectable jumper is not set, the corresponding dedicated input
pin of the CPLD can be considered a “no connect” (NC) pin. Table 2-13 on page 2-9
ATF15xx-DK3 Development Kit User Guide
3605B–PLD–05/06
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相关代理商/技术参数
ATF15XX-DK3-U 功能描述:ATF15xx Family of CPLD - CPLD Evaluation Board 制造商:atmel 系列:- 零件状态:有效 类型:CPLD 配套使用产品/相关产品:ATF15xx 系列 CPLD 内容:板，线缆，样品 标准包装:1
ATF15XX-SAA100 功能描述:ADAPTER FOR ATF15XX-DK2 100TQFP RoHS:否 类别:编程器，开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 类型:MCU 适用于相关产品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、缆线、软件、数据表和用户手册 其它名称:520-1035
ATF15XX-SAA44 功能描述:ADAPTER FOR ATF15XX-DK2 44TQFP RoHS:否 类别:编程器，开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 类型:MCU 适用于相关产品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、缆线、软件、数据表和用户手册 其它名称:520-1035
ATF15XX-SAJ44 功能描述:ADAPTER FOR ATF15XX-DK2 44PLCC RoHS:否 类别:编程器，开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 类型:MCU 适用于相关产品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、缆线、软件、数据表和用户手册 其它名称:520-1035
ATF15XX-SAJ68 功能描述:ADAPTER FOR ATF15XX-DK2 68PLCC RoHS:否 类别:编程器，开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 类型:MCU 适用于相关产品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、缆线、软件、数据表和用户手册 其它名称:520-1035
ATF15XX-SAQ100 功能描述:ADAPTER FOR ATF15XX-DK2 100PQFP RoHS:否 类别:编程器，开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 类型:MCU 适用于相关产品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、缆线、软件、数据表和用户手册 其它名称:520-1035
ATF15XX-SAQ160 功能描述:ADAPTER FOR ATF15XX-DK2 160PQFP RoHS:否 类别:编程器，开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 类型:MCU 适用于相关产品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、缆线、软件、数据表和用户手册 其它名称:520-1035
ATF16DSGTF 制造商:Crane Connectors 功能描述: