A3PE1500-1FG896 ACTEL [Actel Corporation], A3PE1500-1FG896 Datasheet - Page 92

• Manufacturer Part Number: A3PE1500-1FG896
• Description: ProASIC3E Flash Family FPGAs
• Manufacturer: ACTEL [Actel Corporation]

ProASIC3E DC and Switching Characteristics
Figure 2-51 • FIFO FULL Flag and AFULL Flag Assertion
Figure 2-52 • FIFO EMPTY Flag and AEMPTY Flag Deassertion
Figure 2-53 • FIFO FULL Flag and AFULL Flag Deassertion
2 -8 0
(Address Counter)
(Address Counter)
(Address Counter)
AEMPTY
WA/RA
WCLK
FULL
AFULL
WA/RA
EMPTY
RCLK
WCLK
WA/RA
RCLK
AFULL
WCLK
FULL
MATCH (FULL)
MATCH
(EMPTY)
NO MATCH
1st Rising
After 1st
Write
Edge
1st Rising
After 1st
Edge
Read
NO MATCH
NO MATCH
t
NO MATCH
2nd Rising
After 1st
CYC
Write
Edge
1st Rising
After 2nd
NO MATCH
Edge
Read
NO MATCH
v1.2
t
RCKEF
t
WCKF
t
CKAF
NO MATCH
NO MATCH
Dist = AFF_TH
NO MATCH
NO MATCH
t
WCKFF
t
CKAF
t
CKAF
MATCH (FULL)
Dist = AEF_TH + 1
Dist = AFF_TH – 1