Configuration & Testing
you need to support configuration input voltages of 1.8 V/1.5 V, you
should set the VCCSELto a logic high and the VCCIO of the bank that
contains the configuration inputs to 1.8 V/1.5 V.
f
For more information on multi-volt support, including information on
using TDOand nCEOin multi-volt systems, refer to the Stratix II
Architecture chapter in volume 1 of the Stratix II Device Handbook.
Configuration Schemes
You can load the configuration data for a Stratix II device with one of five
configuration schemes (see Table 3–5), chosen on the basis of the target
application. You can use a configuration device, intelligent controller, or
the JTAG port to configure a Stratix II device. A configuration device can
automatically configure a Stratix II device at system power-up.
You can configure multiple Stratix II devices in any of the five
configuration schemes by connecting the configuration enable (nCE) and
configuration enable output (nCEO) pins on each device.
Stratix II FPGAs offer the following:
■
■
■
Configuration data decompression to reduce configuration file
storage
Design security using configuration data encryption to protect your
designs
Remote system upgrades for remotely updating your Stratix II
designs
Table 3–5 summarizes which configuration features can be used in each
configuration scheme.
Table 3–5. Stratix II Configuration Features (Part 1 of 2)
Configuration
Configuration Method
Scheme
RemoteSystem
Upgrade
Design Security Decompression
FPP
MAX II device or microprocessor and
flash device
v (1)
v (1)
v
Enhanced configuration device
Serial configuration device
v (2)
v
v
v (3)
v
AS
PS
v
v
MAX II device or microprocessor and
flash device
v
Enhanced configuration device
v
v
v
v
v
Download cable (4)
Altera Corporation
May 2007
3–7
Stratix II Device Handbook, Volume 1
ALTERA [ ALTERA CORPORATION ]
