ACE25QC160GLDPTH datasheet(54/73 Pages) ACE

54 / 73 page

ACE25QC160G

16M BIT SPI NOR FLASH

VER 1.2

Fast Page Program (F2H)

The Fast Page Program instruction is used to program the memory. A Write Enable instruction must

previously have been executed to set the Write Enable Latch bit before sending the Page Program

instruction.

The Fast Page Program instruction is entered by driving /CS Low, followed by the instruction code, 3-byte

address and at least one data byte on SI. If the 8 least significant address bits (A7-A0) are not all zero, all

transmitted data that goes beyond the end of the current page are programmed from the start address of

the same page (from the address whose 8 least significant bits (A7-A0) are all zero). /CS must be driven

low for the entire duration of the sequence.

The Fast Page Program instruction sequence: /CS goes low ->sending Page Program instruction-> 3-byte

address on SI-> at least 1 byte data on SI ->/CS goes high.

The command sequence is shown in Figure 34, If more than 256 bytes are sent to the device, previously

latched data are discarded and the last 256 data bytes are guaranteed to be programmed correctly within

the same page. If less than 256 data bytes are sent to device, they are correctly programmed at the

requested addresses without having any effects on the other bytes of the same page. /CS must be driven

high after the eighth bit of the last data byte has been latched in; otherwise the Fast Page Program

instruction is not executed.

As soon as /CS is driven high, the self-timed Page Program cycle (whose duration is tPP) is initiated. While

the Page Program cycle is in progress, the Status Register may be read to check the value of the Write in

Progress (WIP) bit. The Write In Progress (WIP) bit is 1 during the self-timed Page Program cycle, and is 0

when it is completed. At some unspecified time before the cycle is completed, the Write Enable Latch bit is

reset.

A Fast Page Program instruction applied to a page which is protected by the Block Protect (BP4, BP3, BP2,

BP1, BP0) bits (see Table 5&6) is not executed.

Figure34.Fast Page Program Sequence Diagram

ACE25QC160GLDPTH Datasheet(PDF) 54 Page - ACE Technology Co., LTD.