Fig u re 70: Co n se cu t ive READ Bu rst s (BL8)
T0
T1
T2
T3
T4
T5
T6
T7
T8
T9
T10
T11
T12
T13
T14
CK#
CK
1
READ
NOP
NOP
NOP
READ
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
Command
t
CCD
Bank,
Bank,
2
Address
Col n
Col b
t
t
RPRE
RPST
DQS, DQS#
DO
DO
+ 1
DO
+ 2
DO
+ 3
DO
+ 4
DO
+ 5
DO
+ 6
DO
+ 7
DO
DO
+ 1
DO
+ 2
DO
+ 3
DO
+ 4
DO
+ 5
DO
+ 6
DO
b + 7
3
DQ
n
n
n
n
n
n
n
n
b
b
b
b
b
b
b
RL = 5
RL = 5
Transitioning Data
Don’t Care
Notes: 1. NOP commands are shown for ease of illustration; other commands may be valid at these times.
2. The BL8 setting is activated by either MR0[1:0] = 00 or MR0[1:0] = 01 and A12 = 1 during READ command at T0 and T4.
3. DO n (or b) = data-out from column n (or column b).
4. BL8, RL = 5 (CL = 5, AL = 0).
Fig u re 71: Co n se cu t ive READ Bu rst s (BC4)
T0
T1
T2
T3
T4
T5
T6
T7
T8
T9
T10
T11
T12
T13
T14
CK#
CK
1
Command
READ
NOP
NOP
NOP
READ
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
t
CCD
Bank,
Col n
Bank,
Col b
2
Address
t
t
t
t
RPST
RPRE
RPST
RPRE
DQS, DQS#
3
DO
DO
DO
DO
DO
DO
b + 1
DO
DO
DQ
n
n + 1
n + 2
n + 3
b
b + 2
b + 3
RL = 5
RL = 5
Transitioning Data
Don’t Care
Notes: 1. NOP commands are shown for ease of illustration; other commands may be valid at these times.
2. The BC4 setting is activated by either MR0[1:0] = 10 or MR0[1:0] = 01 and A12 = 0 during READ command at T0 and T4.
3. DO n (or b) = data-out from column n (or column b).
4. BC4, RL = 5 (CL = 5, AL = 0).
MDTIC [ Micon Design Technology Corporation ]
