
531
CHAPTER 24  512K-BIT FLASH MEMORY
24.2 Block Diagram of the Entire Flash Memory and Sector 
Configuration of the Flash Memory
Figure 24.2-1 shows a block diagram of the entire flash memory with the flash memory 
interface circuit included. Figure 24.2-2 shows the sector configuration of the flash 
memory.
■Block Diagram of the Entire Flash Memory
Figure 24.2-1  Block Diagram of the Entire Flash Memory
■Sector Configuration of the 512K-bit Flash Memory
Figure 24.2-2 shows the sector configuration of the 512K-bit flash memory. The addresses in the figure
indicate the high-order and low-order addresses of each sector.
BYTE
CE
OE
WE
AQ0 to AQ18
DQ0 to DQ15
RY/BY
BYTE
CE
OE
WE
AQ0 to AQ15
AQ
-1
DQ0 to DQ15
RY/BY
INT
RESET
RY/BY
Flash memory
interface circuit
Write enable signal
512K bits
flash memory
Write enable interrupt 
signal (to CPU)
External reset signal
F2MC-16LX
bus
Port 2
Port 4
Port 5