P r e l i m i n a r y I n f o r m a t i o n
AC Characteristics
CE#
CLK
AVD#
Addresses
OE#
VA
VA
tIACC
tIACC
Data
Status Data
Status Data
RDY
Notes:
1. The timings are similar to synchronous read timings.
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.
3. RDY is active with data (A18 = 0 in the Configuration
Register). When A18 = 1 in the Configuration Register,
RDY is active one clock cycle before data.
Figure 42. Synchronous Data Polling Timings/Toggle Bit Timings
Enter
Embedded
Erasing
Erase
Suspend
Enter Erase
Suspend Program
Erase
Resume
Erase
Erase Suspend
Read
Erase
Suspend
Program
Erase
Complete
WE#
Erase
Erase Suspend
Read
DQ6
DQ2
Note: DQ2 toggles only when read at an address within an erase-suspended sector. The system may use OE# or CE#
to toggle DQ2 and DQ6.
Figure 43. DQ2 vs. DQ6
76
Am29BDS128H/Am29BDS064H
27024_A5_00_E June 18, 2004
SPANSION [ SPANSION ]
