ISSUE 4.2 : November 1998
PUMA 68F4006/A-70/90/12
DATA POLLING ALGORITHM
START
Read Byte
(DQ0-DQ7)
Addr =VA
YES
DQ7 = Data ?
NO
NO
DQ5 = 1 ?
YES
Read Byte
(DQ0-DQ7)
Addr =VA
YES
DQ7 = Data ?
PASS
NO
FAIL
NOTE:
1. DQ7 is rechecked even if DQ5 = 1 because DQ7 may change simultaneously with DQ5.
2. VA = Byte address for programming.
= Any of the sector addresses within the sector being erased during sector erase operation
= XXXXXH during chip erase
TOGGLE BIT ALGORITHM
STA R T
Read Byte
(DQ 0-D Q 7)
Addr=Don't C are
NO
DQ 6=Toggle ?
YES
NO
DQ 5 = 1 ?
YES
Read Byte
(DQ 0-D Q 7)
Addr=Don't C are
NO
DQ 6=Toggle ?
PAS S
YES
FAIL
NOTES:
1. DQ6 is rechecked even if DQ5 = 1 because DQ6 may stop toggling at the same time as DQ5 changing to "1".
12
MOSAIC [ MOSAIC ]
