2/24/2008 9T6WP
Preliminary Hardware Data Module
BCM7405
06/29/07
Timing and AC Characteristics
Bro a d c o m Co rp o r a ti o n
Document
7405-1HDM00-R
DDR Interface Timing Page 1-163
DDR I
NTERFACE
T
IMING
Figure 1-48: Write Cycle Timing
Figure 1-49: Read Cycle Timing
CLK / CLKb
COMMAND
ADRS/BSx
Ts
Th
Ts
Tdqss
DQS
DQ
DQM
Th
Tdpwo
DQS
DQ
CLK / CLKb
COMMAND
ADRS/BSx
Tdv_read
Th
Ts
Tdpwi