Example Pcmcia Timings; Table 271: Example Flash Card Ac Specs - Broadcom BCM1250 User Manual

BCM1250/BCM1125/BCM1125H
E PCMCIA T
XAMPLE
A flash card might have the access timings given in
Parameter
Read Cycle Time
Address Access Time
Card Enable Access Time
Output Enable Access Time
Output Disable Time
Write Cycle Time
Write Pulse Width
Address Setup Time to WE
Card Enable Setup Time to WE
Address Setup Time to WE end
Data Setup Time to WE end
Data Hold time from WE end
Card Enable to WE end
Card Enable hold from WE end
Write Recover time
If such a card were connected as shown in
this card are given in
shown in Figure 81 on page
the buffers are chosen for illustration only and do not necessarily match any real devices.
Page 390 Section 12: PCMCIA Control Interface
IMINGS

Table 271: Example Flash Card AC Specs

tRC
tAcca
tAccce
tAccoe
tDis
tWC
tWP
tSUa
tSUcewe
tSUaweh
tSUd
tHd
tSUceweh
tHce
Trec
Figure 80 on page 385
Table 272 on page 393. The timing diagram that results for read and write accesses is
392. Note that the values used for the card timing and the propagation delays of
B r oadco m C orp or ati on
Table 271.
Name
possible generic bus timing parameters for
Document
User Manual
10/21/02
Min (ns) Max (ns)
150 -
- 150
- 150
- 80
- 50
150 -
75 -
20 -
0 -
140 -
50 -
20 -
100 -
0 -
20 -
1250_1125-UM100CB-R