Programming mode for multi-layer storage flash memory array and switching control method thereof

A switching control method of a programming mode for a multi-layer storage flash memory array, wherein the multi-layer storage flash memory array is operated by a flash memory controller, in a programming process for a flash memory, the flash memory controller selects to skip a part of logic pages for programming, and selects to skip least significant bit (LSB) pages in different directions, and switches to control one of at least three programming modes are comprised:

• programming mode 1:
• in a programming process, selecting to skip a group of least significant bit (LSB) pages adjacent in a horizontal direction among physical pages of a multi-layer storage flash memory for programming, and reducing a programming times in the horizontal direction of the multi-layer storage flash memory array, a sequence number Npass of the skipped logic page being:
• N
• pass
• =
• {
• 4
• ⁢
• i
• ,
• 1
• ≤
• i
• ≤
• 63
• 253
• ,
• i
• =
• 64
• where i is a natural number, and 1≦i≦64;
• programming mode 2:
• in a programming process, selecting to skip a part of logic pages for programming, and in a programming process, skipping two groups of LSB pages adjacent in a diagonal direction among physical pages of a multi-layer storage flash memory, and reducing a programming times in the diagonal direction of the multi-layer storage flash memory array, a sequence number Npass of the skipped logic page being:
• N
• pass
• =
• {
• 4
• ⁢
• i
• ,
• i
• =
• 2
• ⁢
• n
• +
• 1
• 4
• ⁢
• i
• +
• 1
• ,
• i
• =
• 2
• ⁢
• n
• 255
• ,
• i
• =
• 64
• ,
• ⁢
• ⁢
• or
• ,
• ⁢
• N
• pass
• =
• {
• 4
• ⁢
• i
• +
• 1
• ,
• i
• =
• 2
• ⁢
• n
• +
• 1
• 4
• ⁢
• i
• ,
• i
• =
• 2
• ⁢
• n
• 254
• ,
• i
• =
• 64
• where n is a natural number, and 1≦n≦31;
• and,
• programming mode 3:
• in a programming process, skipping two adjacent groups of LSB pages separated by a physical line among physical pages of a multi-layer storage flash memory, and reducing a programming times in a vertical direction of the multi-layer storage flash memory array, a sequence number Npass of the skipped logic page being:
• N
• pass
• =
• {
• 4
• ⁢
• i
• +
• 1
• ,
• i
• =
• 2
• ⁢
• n
• +
• 1
• 4
• ⁢
• i
• ,
• i
• =
• 2
• ⁢
• n
• +
• 1
• ,
• ⁢
• ⁢
• or
• ,
• ⁢
• N
• pass
• =
• {
• 4
• ⁢
• i
• +
• 1
• ,
• i
• =
• 2
• ⁢
• n
• 4
• ⁢
• i
• ,
• i
• =
• 2
• ⁢
• n
• where n is a natural number, and 0≦n≦31.