Rev. 1.0 / Oct. 2005

8

WRITE MASK TRUTH TABLE

Function

CKEn-1

CKEn

/CS, /RAS,

/CAS, /WE

DM

ADDR

A8/

AP

BA

Note

Data Write

H

X

X

L

X

1,2,3

Data-In Mask

H

X

X

H

X

1,2,3

Note :

1. Write Mask command masks burst write data with reference to UDQS/LDQS and it is not related with read data.

2. LDM corresponds to the data on DQ0-Q7 and UDM corresponds to the data on DQ8-Q15

3. In here, Don’t Care means logical value only, it doesn’t mean ’Don’t care for DC level of each signals’. DC level should be out of