RD28F1604C3B90 Intel, RD28F1604C3B90 Datasheet - Page 54

• Manufacturer Part Number: RD28F1604C3B90
• Manufacturer: Intel

Specifications of RD28F1604C3B90

• Operating Supply Voltage (max): 3.3V
• Operating Temperature (max): 85C
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Not Compliant

C3 SCSP Flash Memory
B.3
Table 24.
B.4
Table 25.
26 Aug 2005
54
(BA+2)h
Note:
Offset
1. BA = The beginning location of a Block Address (i.e., 008000h is the beginning location of block 1
in word mode.)
Block Lock Status Register
The Block Status Register indicates whether an erase operation completed successfully or whether
a given block is locked or can be accessed for flash program/erase operations.
Block Erase Status (BSR.1) allows system software to determine the success of the last block erase
operation. BSR.1 can be used just after power-up to verify that the V
accidentally removed during an erase operation. This bit is only reset by issuing another erase
operation to the block. The Block Status Register is accessed from word address 02h within each
block.
Block Status Register
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).
CFI Identification
Offset
10h
13h
15h
17h
19h
Length
Intel
1
®
Length
Advanced+ Boot Block Flash Memory (C3) SCSP Family
3
2
2
2
2
Block Lock Status Register
BSR.0 Block Lock Status
BSR.1 Block Lock-Down Status
BSR 2–7: Reserved for future use
0 = Unlocked
1 = Locked
0 = Not locked down
1 = Locked down
Order Number: 252636, Revision: 004
Query-unique ASCII string “QRY“
Primary vendor command set and control interface ID code.
16-bit ID code for vendor-specified algorithms
Extended Query Table primary algorithm address
Alternate vendor command set and control interface ID code
0000h means no second vendor-specified algorithm exists
Secondary algorithm Extended Query Table address.
0000h means none exists
Description
Description
Address
BA+2:
BA+2:
BA+2:
BA+2:
CC
supply was not
(bit 0): 0 or 1
(bit 1): 0 or 1
--00 or --01
(bit 2–7): 0
Addr.
Value
1A:
11:
12:
13:
14:
15:
16:
17:
18:
19:
10
Code
Hex
--51
--52
--59
--03
--00
--35
--00
--00
--00
--00
--00
Datasheet
Notes
Value
1
“Q”
“R”
“Y”