2/24/2008 9T6WP
BCM7405
Preliminary Hardware Data Module
Timing and AC Characteristics
06/29/07
Bro a d c o m C o rp o r a ti o n
Page 1-160
EBI Timing
Document
7405-1HDM00-R
A
SYNCHRONOUS
W
RITE
T
RANSFER
Figure 1-45: Async Write Timing Diagram
Table 1-31: Async Write Timing Parameters
Description
Symbol
Min
Max
Units
Delay time: EBI_CLK rising to EBI_DATA[15:0] valid
t
14
3
11
ns
Delay time: EBI_CLK rising to EBI_WEb[1:0] or EBI_DSb low or high
t
15
3
13.5
ns
Note:
•
Load is 35 pF for all EBI pins.
•
The following timing values from Synchronous Read Timing Parameters also apply here: t
1
, t
2
, t
3
.
Data
Data
t
14
t
15
t
15
EBI_CLK
EBI_ADDR[25:0]
EBI_TSIZE[1:0]
EBI_CSb[n]
EBI_WEb, EBI_DSb
EBI_DATA[15:0]