a3p1000-1pqg208m Actel Corporation, a3p1000-1pqg208m Datasheet - Page 146

• Manufacturer Part Number: a3p1000-1pqg208m
• Description: Fpga Proasic 3 Family 1m Gates 130nm Cmos Technology 1.5v 208-pin Pqfp
• Manufacturer: Actel Corporation

Military ProASIC3/EL DC and Switching Characteristics
Figure 2-54 • FIFO FULL Flag and AFULL Flag Assertion
Figure 2-55 • FIFO EMPTY Flag and AEMPTY Flag Deassertion
Figure 2-56 • FIFO FULL Flag and AFULL Flag Deassertion
2- 13 2
(Address Counter)
(Address Counter)
(Address Counter)
AEMPTY
EMPTY
WA/RA
WA/RA
WCLK
FULL
AFULL
WCLK
RCLK
RCLK
WA/RA
AFULL
WCLK
FULL
(EMPTY)
MATCH (FULL)
MATCH
1st Rising
NO MATCH
After 1st
Edge
Write
1st Rising
After 1st
Edge
Read
NO MATCH
NO MATCH
2nd Rising
t
NO MATCH
After 1st
CYC
Edge
Write
NO MATCH
1st Rising
After 2nd
Edge
Read
NO MATCH
t
RCKEF
R e visio n 0
t
WCKF
t
CKAF
NO MATCH
NO MATCH
Dist = AFF_TH
NO MATCH
NO MATCH
t
WCKFF
t
CKAF
MATCH (FULL)
t
CKAF
Dist = AEF_TH + 1
Dist = AFF_TH – 1