
28F128J3A, 28F640J3A, 28F320J3A
18
Preliminary
4.2.7
Primary-Vendor Specific Extended Query Table
Certain flash features and commands are optional. The 
Primary Vendor-Specific Extended Query
table specifies this and other similar information.
NOTE:
1. Future devices may not support the described 
“
Legacy Lock/Unlock
”
 function. Thus bit 3 would have a value 
of 
“
0.
”
Table 12. Primary Vendor-Specific Extended Query
Offset
(1)
P = 31h
(P+0)h
(P+1)h
(P+2)h
(P+3)h
(P+4)h
Length
Description
(Optional Flash Features and Commands)
Primary extended query table 
Unique ASCII string 
“
PRI
”
Add.
Hex 
Code
--50
--52
--49
--31
--31
--0A
--00
--00
--00
Value
3
31:
32:
33:
34:
35:
36:
37:
38:
39:
“
P
”
“
R
”
“
I
”
“
1
”
“
1
”
1
1
Major version number, ASCII
Minor version number, ASCII
Optional feature and command support (1=yes, 0=no)
bits 9
–
31 are reserved; undefined bits are 
“
0.
”
  If bit 31 is 
“
1
”
 then another 31 bit field of optional features follows at 
the end of the bit-30 field.
bit 0  Chip erase supported
bit 1  Suspend erase supported
bit 2  Suspend program supported
bit 3  Legacy lock/unlock supported
bit 4  Queued erase supported
bit 5 Instant Individual block locking supported
bit 6 Protection bits supported
bit 7 Page-mode read supported
bit 8 Synchronous read supported
Supported functions after suspend: read Array, Status, 
Query
   Other supported operations are:
   bits 1
–
7 reserved; undefined bits are 
“
0
”
bit 0  Program supported after erase suspend
Block status register mask 
bits 2
–
15 are Reserved;  undefined bits are 
“
0
”
bit 0  Block Lock-Bit Status register active
bit 1  Block Lock-Down Bit Status active
V
 logic supply highest performance program/erase 
voltage
   bits 0
–
3  BCD value in 100 mV
   bits 4
–
7  BCD value in volts
V
PP
 optimum program/erase supply voltage
   bits 0
–
3  BCD value in 100 mV
   bits 4
–
7  HEX value in volts
(P+5)h
(P+6)h
(P+7)h
(P+8)h
4
bit 0 = 0
bit 1 = 1
bit 2 = 1
bit 3 = 1
(1)
bit 4 = 0
bit 5 = 0
bit 6 = 1
bit 7 = 1
bit 8 = 0
No
Yes
Yes
Yes
(1)
No
No
Yes
Yes
No
(P+9)h
1
3A:
--01
bit 0 = 1
3B:
3C:
bit 0 = 1
bit 1 = 0
Yes
(P+A)h
(P+B)h
2
--01
--00
Yes
No
(P+C)h
1
3D:
--33
3.3 V
(P+D)h
1
3E:
--00
0.0 V