Block Diagram Of The Flash Memory And Sector Configuration Of The Flash Memory - Fujitsu MB96300 series Hardware Manual

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CHAPTER 33 FLASH MEMORY

Block Diagram of the Flash Memory and Sector

Configuration of the Flash Memory

Figure 33.2-1 Block diagram of the ﬂash memory shows a block diagram of the ﬂash

memory and the ﬂash memory interface circuit. Figure 33.2-2 Sector conﬁguration of

the ﬂash memory shows the sector conﬁguration of the ﬂash memory.

■ Block diagram of the ﬂash memory

■ Sector conﬁguration of the ﬂash memory

Figure 33.2-2 Sector configuration of the flash memory shows the sector configuration of the flash

memory. The addresses in the figure indicate the high-order and low-order addresses of each sector.

The "main" flash memory sectors are denoted with sector names SA0 ... SA39. The "satellite" flash

memory sectors are denoted with sector names SB0 ... SB7.

Depending on the size of the "main" flash memory, up to 8 small sectors of 8kByte size each are available

in SA0 ... SA7, starting at SA0 upwards.

Depending on the size of the "main" flash memory, a number of large sectors of 64kByte size are available

in SA39 ... SA8, starting at SA39 downwards.

When the "satellite" flash memory is available on the product, depending on the size of the "satellite" flash

memory, up to 8 small sectors of 8kByte size each are available in SB0 ... SB7, starting at SB0 upwards.

Figure 33.2-1 Block diagram of the ﬂash memory

Flash memory

interface circuit

Write enable interrupt signal

External reset signal

Flash memory

enable signal