Vizio L37 Service Manual page 49

3. Precharge
The precharge command is used to precharge or close a bank that has activated. The
precharge command is issued when CS, RAS and WE are low and CAS is high at the
rising edge of the clock. The precharge command can be used to precharge each bank
respectively or all banks simultaneously. The bank select addresses (BA0, BA1) are used
to define which bank is precharged when the command is initiated. For write cycle,
tWR(min.) must be satisfied until the precharge command can be issued. After tRP from
the precharge, an active command to the same bank can be initiated.
A10/AP
0
0
0
0
1
CONFIDENTIAL – DO NOT COPY
Burst Selection for Precharge by Bank address bits
BA1
0
0
1
1
X
BA0
0
1
0
1
X
Precharge
Bank A Only
Bank B Only
Bank C Only
Bank D Only
All Banks
Page 8-13
File No. SG-0176