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Intel Advanced+ Boot Block Flash Memory (C3)
Table 27. Block Status Register
Offset
Length
Description
Block Lock Status Register
Add.
Value
BA+2 --00 or --01
BSR[0] Block lock status
0 = Unlocked
BA+2 (bit 0): 0 or 1
1 = Locked
0x(BA+2)1
1
BSR[1] Block lock-down status
0 = Not locked down
BA+2 (bit 1): 0 or 1
BA+2 (bit 2-7): 0
1 = Locked down
BSR[7:2]: Reserved for future use
NOTES:
1. BA = Block Address beginning location (i.e., 0x08000 is block 1’s beginning location when the block size is
32K-word).
C.4
CFI Query Identification String
The Identification String provides verification that the component supports the Common Flash
Interface specification. It also indicates the specification version and supported vendor-specified
command set(s).
Table 28. CFI Identification
Offset
Length
Description
Add.
Hex Code
Value
10:
11:
12:
--51
--52
--59
“Q”
“R”
“Y”
0x10
3
Query-unique ASCII string “QRY“
Primary vendor command set and control interface ID code
16-bit ID code for vendor-specified algorithms
13:
14:
--03
--00
0x13
0x15
0x17
0x19
2
2
2
2
15:
16:
--35
--00
Extended Query Table primary algorithm address
Alternate vendor command set and control interface ID code
0x0000 means no second vendor-specified algorithm exists
17:
18:
--00
--00
Secondary algorithm Extended Query Table address
0x0000 means none exists
19:
1A:
--00
--00
Table 29. System Interface Information
Offset
Length
Description
logic supply minimum program/erase voltage
bits 0–3 BCD 100 mV
bits 4–7 BCD volts
Add.
Hex Code
Value
V
V
V
CC
0x1B
0x1C
0x1D
1
1B:
--27
2.7 V
logic supply maximum program/erase voltage
bits 0–3 BCD 100 mV
bits 4–7 BCD volts
CC
1
1
1C:
1D:
--36
--B4
3.6 V
[programming] supply minimum program/erase voltage
bits 0–3 BCD 100 mV
bits 4–7 HEX volts
PP
11.4 V
60
Datasheet
INTEL [ INTEL ]
