afs600 Actel Corporation, afs600 Datasheet - Page 84

• Manufacturer Part Number: afs600
• Description: Actel Fusion Programmable System Chips Mixed-signal Family With Optional Arm Support
• Manufacturer: Actel Corporation

Figure 2-61 • FIFO FULL and AFULL Flag Assertion
Figure 2-62 • FIFO EMPTY Flag and AEMPTY Flag Deassertion
Figure 2-63 • FIFO FULL Flag and AFULL Flag Deassertion
2 -7 0
(Address Counter)
Actel Fusion Programmable System Chips
(Address Counter) MATCH (FULL)
(Address Counter)
WA/RA
WCLK
WA/RA
RCLK
WCLK
RCLK
AEF
EF
AFF
WA/RA
FF
WCLK
MATCH
(EMPTY)
AFF
FF
1st rising
after 1st
NO MATCH
write
edge
1st Rising
After 1st
Edge
Read
NO MATCH
NO MATCH
2nd rising
t
NO MATCH
after 1st
CYC
write
edge
NO MATCH
After 2nd
1st Rising
A d v a n c e d v 1 . 4
Edge
Read
NO MATCH
t
RCKEF
t
WCKF
t
CKAF
NO MATCH
NO MATCH
Dist = AFF_TH
NO MATCH
NO MATCH
t
WCKFF
MATCH (FULL)
t
t
CKAF
CKAF
Dist = AFF_TH - 1
Dist = AEF_TH + 1