CHAPTER 5 MEMORY ACCESS CONTROL FUNCTION
189
User’s Manual U14359EJ4V0UM
Figure 5-15. SDRAM Single Write Cycle (2/3)
(b) During off-page access (page change)
TPREC
PRE
ACT
WR
TW
TACT
TWR1
TWR2
TWR3
Data
Address
Address
Column address
Row
address
Aaddress
Address
Bank
address
Address
Bank
address
Address
Row
address
Off-page
SDCLK (output)
BCYST (output)
SDCKE (output)
H
Command
SDRAS (output)
SDCAS (output)
CSn (output)
WE (output)
LDQM (output)
UDQM (output)
Note
(output)
Bank address (output)
A10 (output)
A0 to A9 (output)
D0 to D15 (I/O)
Address
Row
address
Note
Addresses other than the bank address, A10, and A0 to A9.
Remarks 1.
The broken lines indicate the high-impedance state.
2.
n = 1, 3, 4, 6