EtronTech
EM636165-XXI
1M x 16 SDRAM
T0
T 1
T2
T3
T4
T5
T6
T7
T8
T9
T10
CLK
t
CK2
CKE
CS#
Clock min.
RAS#
CAS#
WE#
A11
A10
Address Key
A0-A9
DQM
tRP
Hi-Z
DQ
Mode Register
Set Command
PrechargeAll
Any
Command
Mode Register Set Cycle
(CAS# Latency = 1, 2, 3)
The mode register is divided into various fields depending on functionality.
Burst Length Field (A2~A0)
·
This field specifies the data length of column access using the A2~A0 pins and selects the
Burst Length to be 1, 2, 4, 8, or full page.
A2
0
A1
0
A0
0
Burst Length
1
0
0
1
2
0
1
0
4
0
1
1
8
1
0
0
Reserved
Reserved
Reserved
Full Page
1
0
1
1
1
0
1
1
1
Preliminary
12
Rev. 1.1 Apr. 2005
ETRON [ ETRON TECHNOLOGY, INC. ]
