Internet Data Sheet

Rev. 1.25, 2007-06

11

03062006-NMGU-CQ9D

HY[B/I]39SC256[80/16]0F[E/F]

256-MBit Synchronous DRAM

TABLE 5

Field

Bits

Type

Description

BL

[2:0]

w

Burst Length

Number of sequential bits per DQ related to one read/write command, see Table 6

Note: All other bit combinations are RESERVED

BT

3

Burst Type

Sequential

Interleaved

CL

[6:4]

CAS Latency

Number of full clocks from read command to first data valid window.

Note: All other bit combinations are RESERVED.

TM

[8:7]

Test Mode

Note: All other bit combinations are RESERVED.

WBL

9

Write Burst Length

Burst write

Single bit write

[12:10]

Reserved, set to zero