M1AFS250-FGG256I Actel Corporation, M1AFS250-FGG256I Datasheet - Page 94

• Manufacturer Part Number: M1AFS250-FGG256I
• Description: Actel Fusion Family Of Mixed Signal Fpgas
• Manufacturer: Actel Corporation

Device Architecture
Figure 2-62 • FIFO FULL and AFULL Flag Assertion
Figure 2-63 • FIFO EMPTY Flag and AEMPTY Flag Deassertion
Figure 2-64 • FIFO FULL Flag and AFULL Flag Deassertion
2- 78
(Address Counter)
(Address Counter)
(Address Counter) MATCH (FULL)
WA/RA
WA/RA
WCLK
WCLK
RCLK
WA/RA
RCLK
WCLK
AFF
AEF
FF
EF
AFF
FF
MATCH
(EMPTY)
NO MATCH
1st rising
after 1st
edge
write
1st Rising
After 1st
Read
Edge
NO MATCH
NO MATCH
t
NO MATCH
2nd rising
CYC
after 1st
1st Rising
edge
write
After 2nd
NO MATCH
Edge
Read
NO MATCH
t
RCKEF
R e visio n 1
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