
LHF16KTV
4.5.4 Device Geometry Definition
This field provides critical details of the flash device geometry.
Table 10. Device Geometry Definition
14
Offset
(Word Address)
27H
28H,29H
2AH,2BH
2CH
2DH,2EH
2FH,30H
Length
01H
02H
02H
01H
02H
02H
Description
Device Size
15H (15H=21, 2 21 =2097152=2M Bytes)
Flash Device Interface description
02H,00H (x8/x16 supports x8 and x16 via BYTE#)
Maximum Number of Bytes in Multi word/byte write
05H,00H (2 5 =32 Bytes )
Number of Erase Block Regions within device
01H (symmetrically blocked)
The Number of Erase Blocks
1FH,00H (1FH=31 ==> 31+1=32 Blocks)
The Number of "256 Bytes" cluster in a Erase block
00H,01H (0100H=256 ==>256 Bytes x 256= 64K Bytes in a Erase Block)
4.5.5 SCS OEM Specific Extended Query Table
Certain flash features and commands may be optional in a vendor-specific algorithm specification. The optional
vendor-specific Query table(s) may be used to specify this and other types of information. These structures are
defined solely by the flash vendor(s).
Table 11. SCS OEM Specific Extended Query Table
Offset
(Word Address)
31H,32H,33H
34H
35H
36H,37H,
38H,39H
3AH
3BH,3CH
3DH
3EH
Length
03H
01H
01H
04H
01H
02H
01H
01H
Description
PRI
50H,52H,49H
31H (1) Major Version Number , ASCII
30H (0) Minor Version Number, ASCII
0FH,00H,00H,00H
Optional Command Support
bit0=1 : Chip Erase Supported
bit1=1 : Suspend Erase Supported
bit2=1 : Suspend Write Supported
bit3=1 : Lock/Unlock Supported
bit4=0 : Queued Erase Not Supported
bit5-31=0 : reserved for future use
01H
Supported Functions after Suspend
bit0=1 : Write Supported after Erase Suspend
bit1-7=0 : reserved for future use
03H,00H
Block Status Register Mask
bit0=1 : Block Status Register Lock Bit [BSR.0] active
bit1=1 : Block Status Register Valid Bit [BSR.1] active
bit2-15=0 : reserved for future use
V CC Logic Supply Optimum Write/Erase voltage(highest performance)
50H(5.0V)
V PP Programming Supply Optimum Write/Erase voltage(highest performance)
50H(5.0V)
3FH
reserved Reserved for future versions of the SCS Specification
Rev. 2.0