EP2S130F1020I4 Datasheet, PDF (625/768 Pages) List of Unclassifed Manufacturers – Stratix II Device Handbook, Volume 1

Configuring Stratix II and Stratix II GX Devices
Passive Parallel
Asynchronous
Configuration
Passive parallel asynchronous (PPA) configuration uses an intelligent
host, such as a microprocessor, to transfer configuration data from a
storage device, such as flash memory, to the target Stratix II or
Stratix II GX device.
Configuration data can be stored in RBF, HEX, or TTF format. The host
system outputs byte-wide data and the accompanying strobe signals to
the device. When using PPA, pull the DCLK pin high through a 10-k pull-
up resistor to prevent unused configuration input pins from floating.
1 You cannot use the Stratix II or Stratix II GX decompression and
design security features if you are configuring your Stratix II or
Stratix II GX device using PPA mode.
Table 7–17 shows the MSEL pin settings when using the PS configuration
scheme.
Table 7–17. Stratix II and Stratix II GX MSEL Pin Settings for PPA
Configuration Schemes
Configuration Scheme
PPA
Remote System Upgrade PPA (1)
MSEL3
0
0
MSEL2
0
1
MSEL1
0
0
MSEL0
1
1
Note to Table 7–17:
(1) This scheme requires that you drive the RUnLU pin to specify either remote
update or local update. For more information about remote system upgrades in
Stratix II and Stratix II GX devices, refer to the Remote System Upgrades With
Stratix II & Stratix II GX Devices chapter in volume 2 of the Stratix II Device
Handbook or the Remote System Upgrades With Stratix II & Stratix II GX Devices
chapter in volume 2 of the Stratix II GX Device Handbook.
Figure 7–30 shows the configuration interface connections between the
device and a microprocessor for single device PPA configuration. The
microprocessor or an optional address decoder can control the device’s
chip select pins, nCS and CS. The address decoder allows the
microprocessor to select the Stratix II or Stratix II GX device by accessing
a particular address, which simplifies the configuration process. Hold the
nCS and CS pins active during configuration and initialization.
Altera Corporation
January 2008
7–73
Stratix II Device Handbook, Volume 2