7

IS42/45SM/RM/VM32400G

Rev. A | Apr. 2012

www.issi.com - DRAM@issi.com

Figure5: Extended Mode Register

0

PASR

Address Bus

Extended Mode Register (Ex)

0

1

2

3

4

5

6

10

9

8

7

11

A0

A1

A2

A3

A4

A5

A6

A7

A8

A9

A10

A11

E2

E1

E0

Self Refresh Coverage

0

0

0

All Banks

0

0

1

Two Banks (BA1=0)

0

1

0

One Bank (BA1=BA0=0)

0

1

1

Reserved

1

0

0

Reserved

1

0

1

Half of One Bank (BA1=BA0=0, Row Address MSB=0)

1

1

0

Quarter of One Bank (BA1=BA0=0, Row Address 2 MSB=0)

1

1

1

Reserved

Note: E13(BA1) must be set to “1” and E12(BA0) must be set to “0” to select Extended Mode Register (vs. the base Mode

Register)

E6

E5

Driver Strength

0

0

Full Strength

0

1

1/2 Strength

1

0

1/4 Strength

1

1

1/8 Strength

0

0

0

0

DS

BA0

BA1

0

12

13

1

0

0