M36DR432BD ST Microelectronics, M36DR432BD Datasheet - Page 23

• Manufacturer Part Number: M36DR432BD
• Description: 32 Mbit 2Mb x16 / Dual Bank / Page Flash Memory and 4 Mbit 256Kb x16 SRAM / Multiple Memory Product
• Manufacturer: ST Microelectronics

Table 12. Status Register Bits
Note: 1. Logic level ’1’ is High, ’0’ is Low. -0-1-0-0-0-1-1-1-0- represent bit value in successive read operations.
DQ
7
6
5
4
3
2
1
0
2. In case of double word program DQ7 refers to the last word input.
Data
Polling
Toggle Bit
Error Bit
Reserved
Erase Time
Bit
Toggle Bit
Reserved
Reserved
Name
’-1-0-1-0-1-0-1-’
’-1-1-1-1-1-1-1-’
’-1-0-1-0-1-0-1-’
Logic Level
DQ
DQ
DQ
DQ
’1’
’0’
’1’
’0’
’1’
’0’
1
Erase complete or erase block
in Erase Suspend.
Erase in progress
Program complete or data of
non erase block during Erase
Suspend.
Program in progress
Erase or Program in progress
Program complete
Erase complete or Erase
Suspend on currently addressed
block
Program or Erase Error
Program or Erase in progress
Erase Timeout Period Expired
Erase Timeout Period in
progress
Erase Suspend read in the
Erase Suspended Block.
Erase Error due to the currently
addressed block (when DQ5 =
’1’).
Program in progress or Erase
complete.
Erase Suspend read on non
Erase Suspend block.
Definition
(2)
Indicates the P/E.C. status, check
during Program or Erase, and on
completion before checking bits DQ5
for Program or Erase success.
Successive reads output
complementary data on DQ6 while
Programming or Erase operations are
in progress. DQ6 remains at constant
level when P/E.C. operations are
completed or Erase Suspend is
acknowledged.
This bit is set to ’1’ in the case of
Programming or Erase failure.
P/E.C. Erase operation has started.
Only possible command entry is Erase
Suspend
An additional block to be erased in
parallel can be entered to the P/E.C
provided that it belongs to the same
bank
Indicates the erase status and allows
to identify the erased block.
M36DR432AD, M36DR432BD
Note
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