28F320J5 and 28F640J5
Table 13. Primary Vendor-Specific Extended Query
Offset(1)
P = 31h
Description
(Optional Flash Features and Commands)
Hex
Code
Length
Add.
Value
(P+0)h
(P+1)h
(P+2)h
(P+3)h
(P+4)h
(P+5)h
(P+6)h
(P+7)h
(P+8)h
3
Primary extended query table
Unique ASCII string“PRI”
31:
32:
33:
34:
35:
36:
37:
38:
39:
bit 0 = 0
bit 1 = 1
bit 2 = 0
bit 3 = 1
bit 4 = 0
--50
--52
--49
--31
--31
--0A
--00
--00
--00
No
“P”
“R”
“I”
“1”
“1”
1
1
4
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
Yes
No
Yes
No
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
(P+9)h
1
2
3A:
--01
bit 0 = 1
3B:
3C:
bit 0 = 1
bit 1 = 0
Yes
--01
--00
Yes
No
(P+A)h
(P+B)h
V
logic supply highest performance program/erase
CC
voltage
bits 0–3 BCD value in 100 mV
bits 4–7 BCD value in volts
optimum program/erase supply voltage
(P+C)h
1
1
3D:
--50
--00
5.0 V
0.0 V
V
PP
(P+D)h
(P+E)h
bits 0–3 BCD value in 100 mV
bits 4–7 HEX value in volts
Reserved for Future Use
3E:
3F:
NOTE:
1. The variable P is a pointer which is defined at CFI offset 15h.
4.3
Read Identifier Codes Command
The identifier code operation is initiated by writing the Read Identifier Codes command. Following
the command write, read cycles from addresses shown in Figure 5 retrieve the manufacturer,
device, block lock configuration and master lock configuration codes (see Table 13 for identifier
code values). To terminate the operation, write another valid command. Like the Read Array
command, the Read Identifier Codes command functions independently of the VPEN voltage and
RP# can be VIH or VHH. This command is valid only when the WSM is off or the device is
suspended. Following the Read Identifier Codes command, the following information can be read:
24
Datasheet
INTEL [ INTEL ]
