W97AH6KB datasheet(38/127 Pages) WINBOND

38 / 127 page

W97AH6KB / W97AH2KB

Publication Release Date: May 15, 2014

Revision: A01-001

- 38 -

7.4.7.1

Burst Write Truncated by BST: WL = 1, BL = 16

CA0-9

[Cmd]

Nop

BST

Nop

Write

DQS

WL=1

Bank M

Col Addr A Col Addr A

DIN A0

DIN A1

WL*tCK+tDQSS

CK_t / CK_c

DQS_c

DQS_t

DIN A2

DIN A3

DIN A4

DIN A5

DIN A6

DIN A7

BST not allowed

Notes:

1. The BST command truncates an ongoing write burst WL * tCK + tDQSS after the rising edge of the clock where the Burst Terminate command

is issued.

2. For LPDDR2-S4 devices, BST can only be issued at even number of clock cycles after the Write command.

3. Additional BST commands are not allowed after T4 and may not be issued until after the next Read or Write command.

7.4.7.2

Burst Read Truncated by BST: RL = 3, BL = 16

CA0-9

[Cmd]

Nop

BST

Nop

Read

DQS

RL = 3

Bank N

Col Addr A Col Addr A

RL*tCK+tDQSCK+tDQSQ

CK_t / CK_c

DQS_c

DQS_t

DOUT A2

DOUT A1

DOUT A0

DOUT A3

DOUT A4

DOUT A5

DOUT A6

DOUT A7

BST not allowed

Notes:

1. The BST command truncates an ongoing read burst RL * tCK + tDQSCK + tDQSQ after the rising edge of the clock where the Burst Terminate

command is issued.

2. For LPDDR2-S4 devices, BST can only be issued at even number of clock cycles after the Read command.

3. Additional BST commands are not allowed after T4 and may not be issued until after the next Read or Write command.

W97AH6KB Datasheet(PDF) 38 Page - Winbond

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