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EP2C20 Datasheet(PDF) 2 Page - Altera Corporation |
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EP2C20 Datasheet(HTML) 2 Page - Altera Corporation |
2 / 34 page 1–2 Chapter 1: Enhanced Configuration Devices (EPC4, EPC8, and EPC16) Data Sheet Functional Description Configuration Handbook (Complete Two-Volume Set) © December 2009 Altera Corporation ■ Supports ISP via Jam Standard Test and Programming Language (STAPL) ■ Supports JTAG boundary scan ■ nINIT _CONF pin allows private JTAG instruction to start FPGA configuration ■ Internal pull-up resistor on nINIT_CONF always enabled ■ User programmable weak internal pull-up resistors on nCS and OE pins ■ Internal weak pull-up resistors on external flash interface address and control lines, bus hold on data lines ■ Standby mode with reduced power consumption f For more information about FPGA configuration schemes and advanced features, refer to the appropriate FPGA family chapter in the Configuration Handbook. Functional Description The Altera enhanced configuration device is a single-device, high-speed, advanced configuration solution for very high-density FPGAs. The core of an enhanced configuration device is divided into two major blocks: a configuration controller and a flash memory. The flash memory is used to store configuration data for systems made up of one or more Altera FPGAs. Unused portions of the flash memory can be used to store processor code or data that can be accessed via the external flash interface after FPGA configuration is complete. Table 1–1 summarizes the features of Altera configuration devices and the amount of configuration space they hold. Table 1–2 lists the supported configuration devices required to configure an ACEX 1K, APEX 1K, APEX 20K, APEX 20KC, APEX 20KE, APEX II, Arria GX, Cyclone, Cyclone II, FLEX 10K, FLEX 10KA, FLEX 10KE, Stratix, Stratix GX, Stratix II, Stratix II GX, or Mercury device. Table 1–1. Altera Configuration Devices Device Memory Size (bits) On-Chip Decompression Support ISP Support Cascading Support Reprogrammable Operating Voltage (V) EPC4 4,194,304 Yes Yes No Yes 3.3 EPC8 8,388,608 Yes Yes No Yes 3.3 EPC16 16,777,216 Yes Yes No Yes 3.3 |
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