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DPCLK0 参数 Datasheet PDF下载

DPCLK0图片预览
型号: DPCLK0
PDF下载: 下载PDF文件 查看货源
内容描述: 的Cyclone III器件手册 [Cyclone III Device Handbook]
分类和应用:
文件页数/大小: 274 页 / 7302 K
品牌: ALTERA [ ALTERA CORPORATION ]
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9–22  
Chapter 9: Configuration, Design Security, and Remote System Upgrades in the Cyclone III Device Family  
Configuration Features  
Figure 9–7 shows the download cable connections to the serial configuration device.  
Figure 9–7. In-System Programming of Serial Configuration Devices  
V
(1)  
V
(1)  
V
CCIO  
(1)  
CCIO  
CCIO  
10 kΩ  
10 kΩ  
10 kΩ  
Cyclone III Device Family  
nSTATUS  
CONF_DONE  
nCONFIG  
nCE  
nCEO  
N.C. (2)  
3.3 V  
3.3 V  
10 kΩ  
3.3 V  
Serial  
Configuration Device  
3.3 V  
GND  
(6)  
DATA  
DCLK  
nCS  
DATA[0] (7)  
DCLK (7)  
nCSO (5)  
ASDI  
ASDO (5)  
MSEL[3..0]  
(4)  
Pin 1  
3.3 V (3)  
GND  
GND  
10 pf  
10 pf  
10 pf  
ByteBlaster II or USB Blaster  
10-Pin Male Header  
GND  
GND  
GND  
10 pf  
(6)  
GND  
Notes to Figure 9–7:  
(1) Connect these pull-up resistors to the VCCIO supply of the bank in which the pin resides.  
(2) The nCEOpin is left unconnected or used as a user I/O pin when it does not feed the nCEpin of another device.  
(3) Power up the VCC of the ByteBlaster II or USB-Blaster download cable with the 3.3-V supply.  
(4) The MSEL pin settings vary for different configuration voltage standards and POR time. To connect MSEL[3..0], refer to Table 9–7 on page 9–11.  
Connect the MSEL pins directly to VCCA or ground.  
(5) These are dual-purpose I/O pins. This nCSOpin functions as the FLASH_NCEpin in AP mode. The ASDOpin functions as the DATA[1]pin in other  
AP and FPP modes.  
(6) The diodes and capacitors must be placed as close as possible to the Cyclone III device family. Ensure that the diodes and capacitors maintain a  
maximum AC voltage of 4.1 V. The external diodes and capacitors are required to prevent damage to the Cyclone III device family AS configuration  
input pins due to possible overshoot when programming the serial configuration device using a download cable. For effective voltage clamping,  
Altera recommends using the Schottky diode, which has a relatively lower forward diode voltage (VF) than the switching and Zener diodes. For  
more information about the interface guidelines using Schottky diodes, refer to AN 523: Cyclone III Configuration Interface Guidelines with EPCS  
Devices.  
(7) When cascading Cyclone III device family in a multi-device AS configuration, connect the repeater buffers between the master and slave devices  
for DATA[0]and DCLK. All I/O inputs must maintain a maximum AC voltage of 4.1 V. The output resistance of the repeater buffers must fit the  
maximum overshoot equation outlined in “Configuration and JTAG Pin I/O Requirements” on page 9–7.  
You can use the Quartus II software with the APU and the appropriate configuration  
device programming adapter to program serial configuration devices. All serial  
configuration devices are offered in an 8- or 16-pin small outline integrated circuit  
(SOIC) package.  
Cyclone III Device Handbook  
Volume 1  
August 2012 Altera Corporation  
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