Configuration Comparison

Active or Passive Configuration Scheme

Configuration Scheme

Serial or Parallel Configuration

External Memory and/or Configuration Device1

Width of DATA Bus (In Bits)

Relative Configuration Time2

Active

AS

Serial

Serial configuration (EPCS) device

1

Moderate

AS

Serial

Serial configuration (EPCQ) device

1,4

Moderate

AP

Parallel

Supported common flash interface (CFI) parallel flash memory

16

Moderate

Passive

PS

Serial

Intel® MAX® series CPLDs, or processor with flash memory

1

Slow

Serial

Download cable

1

Slow

FPP

Parallel

Intel MAX series CPLDs, or microprocessor with flash memory

8, 16, 32

Fast

JTAG

Serial

Intel MAX series CPLDs, or microprocessor with flash memory

1

Slow

Serial

Download cable

1

Slow