TH58NVG5S0FTA20 Datasheet, PDF (59/73 Pages) Toshiba Semiconductor – 32 GBIT (4G × 8 BIT) CMOS NAND E2PROM

TOSHIBA CONFIDENTIAL TH58NVG5S0FTA20
Status Read
The device automatically implements the execution and verification of the Program and Erase operations.
The Status Read function is used to monitor the Ready/Busy status of the device, determine the result (pass
/fail) of a Program or Erase operation, and determine whether the device is in Protect mode. The device status is
output via the I/O port using RE or CE after a “70h” or “F1h” or “F2h” command input. This two signal
control allows the system to poll the progress of each device in multiple memory connections even when
Ready/Busy pins are common-wired. The Status Read can also be used during a Read operation to find out the
Ready/Busy status.
The resulting information is outlined in Table 6 and Tabel 7.
Table 6. Status output table
Definition
Page Program
Block Erase
Cache Program
Read
Cache Read
I/O1 ^{Chip Status1}
Pass: 0
Fail: 1
Pass/Fail
Pass/Fail
Invalid
Chip Status 2
I/O2
Pass: 0
Fail: 1
Invalid
Pass/Fail
Invalid
I/O3 Not Used
0
0
0
I/O4 Not Used
0
0
0
I/O5 Not Used
0
0
0
Page Buffer Ready/Busy
I/O6
Ready: 1
Busy: 0
Ready/Busy
Ready/Busy
Ready/Busy
I/O7
Data Cache Ready/Busy
Ready: 1
Busy: 0
Ready/Busy
Ready/Busy
Ready/Busy
I/O8 ^{Write Protect}
Not Protected :1 Protected: 0
Write Protect
Write Protect
Write Protect
The Pass/Fail status on I/O1 and I/O2 is only valid during a Program/Erase operation when the device is in the Ready state.
Chip Status 1:
During a Auto Page Program or Auto Block Erase operation this bit indicates the pass/fail result.
During a Auto Page Programming with Data Cache operation, this bit shows the pass/fail results of the
current page program operation, and therefore this bit is only valid when I/O6 shows the Ready state.
Chip Status 2:
This bit shows the pass/fail result of the previous page program operation during Auto Page Programming
with Data Cache. This status is valid when I/O7 shows the Ready State.
The status output on the I/O6 is the same as that of I/O7 if the command input just before the 70h is not
15h or 31h.
Tabel 7 : F1h/F2h Read Status Register Definition
Definition
Page Program
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
I/O 8
Pass : “0”, Fail : “1”
Pass : “0”, Fail : “1”
Pass : “0”, Fail : “1”
Don’t-cared
Don’t-cared
Don’t-cared
Busy : “0”, Ready : “1”
Protected : “0”, Not Protected :
“1”
Pass/Fail
Plane0 Pass/Fail
Plane1 Pass/Fail
Not use
Not use
Not use
Ready/Busy
Write Protect
Block Erase
Pass/Fail
Plane0 Pass/Fail
Plane1 Pass/Fail
Not use
Not use
Not use
Ready/Busy
Write Protect
Read
Not use
Not use
Not use
Not use
Not use
Not use
Ready/Busy
Write Protect
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2010-12-13C