AS4C16M32MD1 Datasheet, PDF (31/58 Pages) Alliance Semiconductor Corporation – Four internal banks for concurrent operation

AS4C16M32MD1
7.5.5 Burst Terminate
The BURST TERMINATE command is used to truncate read bursts (with Auto Pre-charge disabled).
The most recently registered READ command prior to the BURST TERMINATE command will be
truncated. Note that the BURST TERMINATE command is not bank specific.
This command should not be used to terminate write bursts.
7.6 Write
The WRITE command (see Figure 22) is used to initiate a burst write access to an active row, with a
burst length as set in the Mode Register. BA0 and BA1 select the bank, and the address inputs
select the starting column location.
The value of A10 determines whether or not Auto Precharge is used. If Auto Precharge is selected,
the row being accessed will be precharged at the end of the write burst; if Auto Precharge is not
selected, the row will remain open for subsequent accesses. Basic Write timing parameters for DQs
are shown in Figure 23; they apply to all Write operations.
Input data appearing on the data bus, is written to the memory array subject to the DM input logic
level appearing coincident with the data. If a given DM signal is registered Low, the corresponding
data will be written to the memory; if the DM signal is registered High, the corresponding data
inputs will be ignored, and a write will not be executed to that byte / column location.
Confidential
31
Rev. 1.0/July 2014