eorex

EM48AM3284LBA

Jan. 2009

www.eorex.com

19/22

4. Operative Command Table (Continued)

(Note 7)

Current

State

/CS

/R

/C

/W

Addr.

Command

Action

H

X

X

X

X

DESL

Continue burst to end

→

Pre-charging

L

H

H

H

X

NOP

Continue burst to end

→

Pre-charging

L

H

H

L

X

BST

ILLEGAL

L

H

L

H

BA/CA/A10

READ/READA

ILLEGAL

(Note 9)

L

H

L

L

BA/CA/A10

WRIT/WRITA

ILLEGAL

(Note 9)

L

L

H

H

BA/RA

ACT

ILLEGAL

(Note 9)

L

L

H

L

BA, A10

PRE/PALL

ILLEGAL

(Note 9)

L

L

L

H

X

REF/SELF

ILLEGAL

Read with

AP

L

L

L

L

Op-Code

MRS

ILLEGAL

H

X

X

X

X

DESL

Burst to end

→ Write recovering

with auto pre-charge

L

H

H

H

X

NOP

Continue burst to end

→ Write

recovering with auto pre-charge

L

H

H

L

X

BST

ILLEGAL

L

H

L

H

BA/CA/A10

READ/READA

ILLEGAL

(Note 9)

L

H

L

L

BA/CA/A10

WRIT/WRITA

ILLEGAL

(Note 9)

L

L

H

H

BA/RA

ACT

ILLEGAL

(Note 9)

L

L

H

L

BA, A10

PRE/PALL

ILLEGAL

(Note 9)

L

L

L

H

X

REF/SELF

ILLEGAL

Write with

AP

L

L

L

L

Op-Code

MRS

ILLEGAL

H

X

X

X

X

DESL

Nop

→ Enter idle after t

RP

L

H

H

H

X

NOP

Nop

→ Enter idle after t

RP

L

H

H

L

X

BST

ILLEGAL

L

H

L

H

BA/CA/A10

READ/READA

ILLEGAL

(Note 9)

L

H

L

L

BA/CA/A10

WRIT/WRITA

ILLEGAL

(Note 9)

L

L

H

H

BA/RA

ACT

ILLEGAL

(Note 9)

L

L

H

L

BA, A10

PRE/PALL

Nop

→ Enter idle after t

RP

L

L

L

H

X

REF/SELF

ILLEGAL

Pre-charging

L

L

L

L

Op-Code

MRS

ILLEGAL

H

X

X

X

X

DESL

Nop

→ Enter idle after t

RCD

L

H

H

H

X

NOP

Nop

→ Enter idle after t

RCD

L

H

H

L

X

BST

ILLEGAL

L

H

L

H

BA/CA/A10

READ/READA

ILLEGAL

(Note 9)

L

H

L

L

BA/CA/A10

WRIT/WRITA

ILLEGAL

(Note 9)

L

L

H

H

BA/RA

ACT

ILLEGAL

(Note 9, 16)

L

L

H

L

BA, A10

PRE/PALL

ILLEGAL

(Note 9)

L

L

L

H

X

REF/SELF

ILLEGAL

Row

Activating

L

L

L

L

Op-Code

MRS

ILLEGAL

Remark H = High level, L = Low level, X = High or Low level (Don't care), AP = Auto Pre-charge