W989D6CB Datasheet, PDF (28/67 Pages) Winbond – 512Mb Mobile LPSDR

W989D6CB / W989D2CB
 Addressing sequence of Sequential mode
512Mb Mobile LPSDR
A column access is performed by incrementing the column address input to the device. The address is varied by the Burst Length
shown as below table.
8.5.3 Addressing Sequence for Sequential Mode
DATA
Access Address
Burst Length
Data0
Data1
n
n+1
2 words (Address bits is A0)
not carried from A0 to A1
Data2
Data3
Data4
Data5
n+2
n+3
n+4
n+5
4 words (Address bits is A1, A0)
not carried from A1 to A2
8 words (Address bits is A2, A1, A0)
not carried from A2 to A3
Data6
n+6
Data7
n+7
 Addressing sequence of Interleave mode
A column access is started from the input column address and is performed by inverting the address bits in the sequence shown
as below table.
8.5.4 Addressing Sequence for Interleave Mode
DATA
Access Address
Data0
Data1
Data2
Data3
Data4
Data5
Data6
Data7
A8 A7 A6 A5 A4 A3 A2 A1 A0
A8 A7 A6 A5 A4 A3 A2 A1 A0
A8 A7 A6 A5 A4 A3 A2 A1 A0
A8 A7 A6 A5 A4 A3 A2 A1 A0
A8 A7 A6 A5 A4 A3 A2 A1 A0
A8 A7 A6 A5 A4 A3 A2 A1 A0
A8 A7 A6 A5 A4 A3 A2 A1 A0
A8 A7 A6 A5 A4 A3 A2 A1 A0
Burst Length
2 words
4 words
8 words
- 28 -
Publication Release Date: Sep, 22, 2011
Revision A01-005