A D V A N C E I N F O R M A T I O N
AC CHARACTERISTICS
AVD#
tCEZ
tCE
CE#
tOEZ
tCH
tOE
OE#
tOEH
WE#
tACC
VA
Addresses
Data
VA
Status Data
Status Data
Notes:
1. Status reads in figure are shown as asynchronous.
3. AVD# must toggle between data reads.
2. VA = Valid Address. Two read cycles are required to
determine status. When the Embedded Algorithm
operation is complete, and Data# Polling will output true
data.
Figure 27. Data# Polling Timings (During Embedded Algorithm)
AVD#
CE#
tCEZ
tCE
tOEZ
tCH
tOE
OE#
WE#
tOEH
tACC
Addresses
Data
VA
VA
Status Data
Status Data
Notes:
1. Status reads in figure are shown as asynchronous.
3. AVD# must toggle between data reads.
2. VA = Valid Address. Two read cycles are required to
determine status. When the Embedded Algorithm
operation is complete, the toggle bits will stop toggling.
Figure 28. Toggle Bit Timings (During Embedded Algorithm)
54
Am29BDS640G
May 9, 2002
SPANSION [ SPANSION ]
