Datasheet
Rev. 1.1 / May. 2013 64
Table 10 - IDD7 Measurement-Loop Pattern
a)
ATTENTION! Sub-Loops 10-19 have inverse A[6:3] Pattern and Data Pattern than Sub-Loops 0-9
a) DM must be driven LOW all the time. DQS, DQS are used according to RD Commands, otherwise MID-LEVEL.
b) Burst Sequence driven on each DQ signal by Read Command. Outside burst operation, DQ signals are MID-LEVEL.
CK, CK
CKE
Sub-Loop
Cycle
Number
Command
CS
RAS
CAS
WE
ODT
BA[2:0]
A[15:11]
A[10]
A[9:7]
A[6:3]
A[2:0]
Data
b)
toggling
Static High
0 0 ACT 0 0 1 1 0 0 00 0 0 0 0 -
1 RDA 0 1 0 1 0 0 00 1 0 0 0 00000000
2 D 1 0 0 0 0 0 00 0 0 0 0 -
... repeat above D Command until nRRD - 1
1
nRRD ACT 0 0 1 1 0 1 00 0 0 F 0 -
nRRD+1 RDA 0 1 0 1 0 1 00 1 0 F 0 00110011
nRRD+2 D 1 0 0 0 0 1 00 0 0 F 0 -
... repeat above D Command until 2* nRRD - 1
2 2*nRRD repeat Sub-Loop 0, but BA[2:0] = 2
3 3*nRRD repeat Sub-Loop 1, but BA[2:0] = 3
4
4*nRRD
D 1 0 0 0 0 3 00 0 0 F 0 -
Assert and repeat above D Command until nFAW - 1, if necessary
5 nFAW repeat Sub-Loop 0, but BA[2:0] = 4
6 nFAW+nRRD repeat Sub-Loop 1, but BA[2:0] = 5
7 nFAW+2*nRRD repeat Sub-Loop 0, but BA[2:0] = 6
8 nFAW+3*nRRD repeat Sub-Loop 1, but BA[2:0] = 7
9
nFAW+4*nRRD
D 1 0 0 0 0 7 00 0 0 F 0 -
Assert and repeat above D Command until 2* nFAW - 1, if necessary
10
2*nFAW+0 ACT 0 0 1 1 0 0 00 0 0 F 0 -
2*nFAW+1 RDA 0 1 0 1 0 0 00 1 0 F 0 00110011
2&nFAW+2
D 1 0 0 0 0 0 00 0 0 F 0 -
Repeat above D Command until 2* nFAW + nRRD - 1
11
2*nFAW+nRRD ACT 0 0 1 1 0 1 00 0 0 0 0 -
2*nFAW+nRRD+1 RDA 0 1 0 1 0 1 00 1 0 0 0 00000000
2&nFAW+nRRD+2
D 1 0 0 0 0 1 00 0 0 0 0 -
Repeat above D Command until 2* nFAW + 2* nRRD - 1
12 2*nFAW+2*nRRD repeat Sub-Loop 10, but BA[2:0] = 2
13 2*nFAW+3*nRRD repeat Sub-Loop 11, but BA[2:0] = 3
14 2*nFAW+4*nRRD
D 1 0 0 0 0 3 00 0 0 0 0 -
Assert and repeat above D Command until 3* nFAW - 1, if necessary
15 3*nFAW repeat Sub-Loop 10, but BA[2:0] = 4
16 3*nFAW+nRRD repeat Sub-Loop 11, but BA[2:0] = 5
17 3*nFAW+2*nRRD repeat Sub-Loop 10, but BA[2:0] = 6
18 3*nFAW+3*nRRD repeat Sub-Loop 11, but BA[2:0] = 7
19 3*nFAW+4*nRRD
D 1 0 0 0 0 7 00 0 0 0 0 -
Assert and repeat above D Command until 4* nFAW - 1, if necessary