APEX 20K Device Family Passive Parallel Asynchronous Configuration
Passive Parallel Asynchronous Configuration
A passive parallel asynchronous (PPA) configuration can be performed by using an intelligent host, such as a microprocessor. During PPA configuration, configuration data is transferred from a storage device, such as a configuration device or flash memory, to the APEXTM 20K device on the DATA[7..0] pins. This configuration scheme is asynchronous, so control signals regulate the configuration cycle.
Configuration Method in Passive Parallel Asynchronous Mode
For more information, please refer to the Configuring Mercury, APEX 20K (2.5 V), ACEX 1K & FLEX 10K Devices and the Configuring APEX 20KE & APEX 20KC Devices chapters in the Configuration Handbook.
Reference Design
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