Block Diagram For Entire Flash Memory And Flash Memory Sector Configuration; Fig. 25.1 Block Diagram For Entire Flash Memory - Fujitsu MB90420/5 (A) Series Hardware Manual

MB90420/5 (A) SERIES F
25.2 Block Diagram for Entire Flash Memory and Flash Memory Sector
Configuration
Figure 25.1 gives the block diagram for the entire flash memory with the flash memory interface circuit, and
Figure 25.2 gives the flash memory sector configuration.
n Block diagram for entire flash memory
Port 0
Port 3
Port 4
COM2 to COM3
SEG0 to SEG11
2
F MC-
16LX
bus
2
MC-16LX FAMILY 16-BIT MICROCONTROLLERS HARDWARE MANUAL
Flash Memory
interface circuit
——–
BYTE
—–
CE
—–
OE
—–
WE
AQ0 to AQ18
DQ0 to AQ15
—–-
INT RY/ BY
Write enable interrupt
signal (issued to CPU)
External reset signal

Fig. 25.1 Block Diagram for Entire Flash Memory

1-Mbit
Flash Memory
——–
BYTE
—–
CE
—–
OE
—–
WE
AQ0 to AQ17
AQ-1
DQ0 to DQ15
—–
RY/ BY
RESET
25-4
—–
RY/ BY write
enable signal