EP3C16F256I7N Altera, EP3C16F256I7N Datasheet - Page 237

• Manufacturer Part Number: EP3C16F256I7N
• Description: Cyclone III
• Manufacturer: Altera

Introduction
Altera Corporation-Preliminary
March 2007
CIII51010-1.0
Cyclone
SRAM memory is volatile, configuration data must be downloaded to
Cyclone III devices each time the device powers up. Depending on device
densities or package options, Cyclone III devices can be configured using
one of five configuration schemes:
■
■
■
■
■
AS and AP schemes use an external flash memory, such as a serial
configuration device or a supported flash memory, respectively. PS, FPP,
and JTAG schemes use either an external controller (for example, a
MAX
multi-device configuration scheme for PS and FPP, the external controller
for the slave Cyclone III device(s) is a master Cyclone III device set in the
AS and AP mode respectively. Refer to the
page 10–8
In some applications, it may be necessary for a device to wake up very
quickly in order to begin operation. Cyclone III devices offer the Fast-On
feature for fast power-on reset (POR) time to support fast wake-up time
applications such as in the automotive market. Cyclone III devices
support a new configuration scheme such as the AP scheme which uses
commodity parallel flash as configuration memory without the need for
an external host which lowers system costs and offers fast configuration
time. Additionally, Cyclone III devices can receive a compressed
configuration bitstream and decompress the data in real-time, reducing
storage requirements and configuration time. Furthermore, Cyclone III
devices support remote system upgrade in the active configuration
modes. Remote system upgrades help deliver feature enhancements and
bug fixes without costly recalls, reduce time-to-market, and extend
product life.
This chapter explains the Cyclone III device configuration features and
describes how to configure Cyclone III devices using the supported
configuration schemes. This chapter also includes configuration pin
descriptions and the Cyclone III device configuration file formats. In this
chapter, the generic term device(s) includes all Cyclone III devices.
Active serial (AS)
Active parallel (AP)
Passive serial (PS)
Fast Passive parallel (FPP)
Joint Test Action Group (JTAG)
®
II device or microprocessor), or a download cable. When used in a
®
III devices use SRAM cells to store configuration data. Because
for more information.
10. Configuring Cyclone III
“Configuration Features” on
Devices
10–1