HD64F3437TFI16V Renesas Electronics America, HD64F3437TFI16V Datasheet - Page 409

• Manufacturer Part Number: HD64F3437TFI16V
• Description: MCU FLASH 60K 100-TQFP
• Manufacturer: Renesas Electronics America

Specifications of HD64F3437TFI16V

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

19.1.4
Figure 19.1 shows a block diagram of the flash memory.
Automatic bit-rate alignment
In boot-mode data transfer, the H8/3434F aligns its bit rate automatically to the host bit rate
(maximum 9600 bps).
Flash memory emulation by RAM
Part of the RAM area can be overlapped onto flash memory, to emulate flash memory updates
in real time.
Writer mode
As an alternative to on-board programming, the flash memory can be programmed and erased
in writer mode, using a general-purpose PROM programmer. Program, erase, verify, and other
specifications are the same as for HN28F101 standard flash memory.
Legend:
FLMCR:
EBR1:
EBR2:
Block Diagram
Flash memory control register
Erase block register 1
Erase block register 2
FLMCR
EBR1
EBR2
Figure 19.1 Flash Memory Block Diagram
8
8
Internal data bus (upper)
Bus interface and control section
(even address)
Internal data bus (lower)
Upper byte
H'0000
H'0002
H'0004
H'7FFC
H'7FFE
On-chip flash memory
(32 kbytes)
(odd address)
Lower byte
H'0001
H'0003
H'0005
H'7FFD
H'7FFF
Operating
mode
MD
MD
1
0
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