
STD110
5-82
SEC ASIC
ARFRAM_HD
High-Density Multi-port Asynchronous Register File
Write-Write Contention
NOTE:
If address latched at the falling edge of write ports are same and t1 is smaller than or equal to twwc, it is
write-write contention. The data stored at current address will be unpredictable.
WA0
A0
A3
A1
WEN0
(RA, OEN = don’t care)
DI0
D1
D2
D0
A3
WEN1
t
ah
D3
D4
D5
A1
A2
WA1
DI1
t
ds
t
dh
t
ah
t
as
t
wen
t
wenh
t
1
t
wenh
t
da
t
dh
t
as