7.1
Read Parameter Page
The device supports the ONFI Read Parameter Page operation, initiated by writing ECh to the command register, followed by an
address input of 00h. The command register remains in Parameter
Page mode until further commands are issued to it.
Table
5
explains the parameter fields.
Note:
For 32nm SkyHigh NAND, for a particular condition, the Read Parameter Page command does not give the correct values.
To
overcome this issue, the host must issue a Reset
command before
the Read Parameter Page command. Issuance of Reset
before
the Read Parameter Page command will provide
the correct values
and will not output 00h values.
Table 5. Parameter Page Description
Byte O/M Description Values
Revision Information and Features Block
M0-3
Parameter page signature
Byte 0: 4Fh, “O”
Byte 1: 4Eh, “N”
Byte 2: 46h, “F”
Byte 3: 49h, “I”
4Fh, 4Eh, 46h, 49h
M4-5
Revision number
Reserved (0)2-15
1 = supports ONFI version 1.01
0 Reserved (0)
02h, 00h
M6-7
Features supported
5-15 Reserved (0)
4 1 = supports odd to even page Copyback
3 1 = supports interleaved operations
2 1 = supports non-sequential page programming
1 1 = supports multiple LUN operations
0 1 = supports 16-bit data bus width
1Eh, 00h
M8-9
Optional commands supported
6-15 Reserved (0)
5 1 = supports Read Unique ID
4 1 = supports Copyback
3 1 = supports Read Status Enhanced
2 1 = supports Get Features and Set Features
1 1 = supports Read Cache commands
0 1 = supports Page Cache Program command
3Bh, 00h
Reserved (0)10-31 00h
Manufacturer Information Block
Device manufacturer (12 ASCII characters)M32-43 53h, 50h, 41h, 4Eh, 53h, 49h, 4Fh,
4Eh, 20h, 20h, 20h, 20h
Device model (20 ASCII characters)M44-63
53h, 33h, 34h, 4Dh, 4Ch, 30h, 38h,
47h, 32h, 20h, 20h, 20h, 20h, 20h, 20h,
20h, 20h, 20h, 20h, 20h
01hJEDEC manufacturer IDM64
Date codeO65-66 00h
Reserved (0)67-79 00h
Memory Organization Block
00h, 08h, 00h, 00hNumber of data bytes per pageM80-83
80h, 00hNumber of spare bytes per pageM84-85
00h, 00h, 00h, 00Number of data bytes per partial pageM86-89 h
00h, 00hNumber of spare bytes per partial pageM90-91
40h, 00h, 00h, 00hNumber of pages per blockM92-95
Number of blocks per logiM96-99 00h, 10h, 00h,cal unit (LUN) 00h
02hNumber of logical units (LUNs)M100
M101
Number of address cycles
Column address cycles4-7
Row address cycles0-3
23h
01hNumber of bits per cellM102
Document Number: 002-00484 Rev. *J