Drop-In/Stand-alone Programming Circuits for AT17A Series Configurators with Altera® FPGAs Atmel AT17A (1) series configurators use a simple serial-access procedure to configure one or more Field Programmable Gate Arrays (FPGAs) or programmable logic devices. This application note provides the drop-in/stand-alone programming circuits for AT17A series devices Altera FPGAs. For Drop-In/Stand-alone Programming, the configurator is programmed before dropping into the circuit that will configure the FPGA, see Figure 1. Application Note Figure 1. ATDH2200E Stand-alone Device Programming Parallel Cable DB-25M Parallel Port PC AT17A Series FPGA Configuration Memory ATDH2200E 25 DB-25F AT17A Series Device Socket 1. AT17A=AT17LV/FXXXA AT17=AT17LV/FXXX Rev. 3033C–CONFG–3/04 1 Figure 2, Figure 3 and Figure 4 show the configurator connection for different families of Altera FPGAs. Figure 2. Drop-In Replacement of AT17A Series Devices for Altera EPF8K FPGA Applications VCC VCC VCC VCC 1 kΩ EPF8K 1 kΩ 1 kΩ (4) AT17A Series Device nCONFIG (2) 22 µF GND nS/P MSEL0 MSEL1 DATA0 DCLK CONF_DONE nSTATUS DATA DCLK(3) nCS (1) OE SER_EN 1 kΩ GND Notes: 1. Reset polarity level of the configurator must be set to active Low (RESET/OE) by a programmer. 2. RC filter recommended for input to nCONFIG to delay configuration until VCC is stable. (nCONFIG can instead be connected to an active Low system reset signal). 3. For AT17LV512A/010A/002A devices, the internal oscillator of the DCLK pin must be disabled to avoid clock contention. 4. AT17 Series devices could also be used. Figure 3. Drop-In Replacement of AT17A Series Devices for Altera FPGA Applications, Internal Oscillator Arrangement VCC VCC VCC VCC 1 kΩ APEX II, EP20K, EP1K, EPF10K, EPF6K nCONFIG (3) 0.1 µF GND nCE MSEL0 MSEL1 DATA0 DCLK CONF_DONE nSTATUS 1 kΩ 1 kΩ AT17A Series Device DATA DCLK nCS OE(1) SER_EN READY(2) GND Notes: 2 1. Reset polarity level of the configurator must be set to active Low (RESET/OE) by a programmer if an AT17LVXXXA series configurator is used. 2. Use of the READY pin is optional. 3. RC filter recommended for input to nCONFIG to delay configuration until Vcc is stable. (nCONFIG can instead be connected to an active Low system reset signal). 4. For Altera’s EDF6K FPGA, MSEL is used instead of MSEL0 and MSEL1. Drop-In/Stand-alone Circuits for Altera FPGAs 3033C–CONFG–3/04 Drop-In/Stand-alone Circuits for Altera FPGAs Figure 4. Drop-In Replacement of AT17A Series Devices for Altera FPGA Applications VCC VCC 1 kΩ APEX II, EP20K, EP1K, EPF10K, EPF6K 0.1 µF nCONFIG (2) DATA0 DCLK CONF_DONE nSTATUS GND 1 kΩ VCC EXT_CLK VCC 1 kΩ AT17A Series Device DATA (3) DCLK nCS OE SER_EN nCE MSEL GND Notes: 1. Reset polarity level of the configurator must be set to active Low (RESET/OE) by a programmer if an AT17LVXXXA series configurator is used. 2. RC filter recommended for input to nCONFIG to delay configuration until VCC is stable. (nCONFIG can instead be connected to an active Low system reset signal). 3. For AT17LV512A/010A/002A devices, the internal oscillator of the DCLK pin must be disabled to avoid clock contention. 4. AT17 series devices could also be used. 3 3033C–CONFG–3/04 Atmel Corporation 2325 Orchard Parkway San Jose, CA 95131, USA Tel: 1(408) 441-0311 Fax: 1(408) 487-2600 Regional Headquarters Europe Atmel Sarl Route des Arsenaux 41 Case Postale 80 CH-1705 Fribourg Switzerland Tel: (41) 26-426-5555 Fax: (41) 26-426-5500 Asia Room 1219 Chinachem Golden Plaza 77 Mody Road Tsimshatsui East Kowloon Hong Kong Tel: (852) 2721-9778 Fax: (852) 2722-1369 Japan 9F, Tonetsu Shinkawa Bldg. 1-24-8 Shinkawa Chuo-ku, Tokyo 104-0033 Japan Tel: (81) 3-3523-3551 Fax: (81) 3-3523-7581 Atmel Operations Memory 2325 Orchard Parkway San Jose, CA 95131, USA Tel: 1(408) 441-0311 Fax: 1(408) 436-4314 RF/Automotive Theresienstrasse 2 Postfach 3535 74025 Heilbronn, Germany Tel: (49) 71-31-67-0 Fax: (49) 71-31-67-2340 Microcontrollers 2325 Orchard Parkway San Jose, CA 95131, USA Tel: 1(408) 441-0311 Fax: 1(408) 436-4314 La Chantrerie BP 70602 44306 Nantes Cedex 3, France Tel: (33) 2-40-18-18-18 Fax: (33) 2-40-18-19-60 ASIC/ASSP/Smart Cards 1150 East Cheyenne Mtn. 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