UPD78F4218AGF-3BA Renesas Electronics America, UPD78F4218AGF-3BA Datasheet - Page 23

• Manufacturer Part Number: UPD78F4218AGF-3BA
• Manufacturer: Renesas Electronics America

Specifications of UPD78F4218AGF-3BA

• Lead Free Status / Rohs Status: Supplier Unconfirmed

6.2 Flash Memory Programming Function
The major functions of flash memory programming are listed in Table 6-2.
interface, and then outputting the existence of unmatched data to the external source after referencing the areas or
all of the data. Consequently, the flash memory is not equipped with a read function, and it is not possible for third
parties to read the contents of the flash memory with the use of the verification function.
The flash memory is written by transferring or receiving commands and data in a selected communication mode.
Verification for the flash memory entails supplying the data to be verified from an external source via a serial
Area erasure
Area blank check
Data write
Area verify
RESET
Function
V
PP
Table 6-2. Major Functions of Flash Memory Programming
Figure 6-1. Communication Mode Selecting Format
10 V
V
V
V
V
DD
DD
SS
SS
µ µ µ µ PD78F4216A, 78F4218A, 78F4216AY, 78F4218AY
Erases contents of specified memory area.
Checks erased status of specified area.
Writes flash memory based on write start address and number of
data to be written (in bytes).
Compares contents of specified memory area with input data.
Data Sheet U14125EJ3V0DS
1
Flash programming mode
V
PP
2
pulses
n
Description
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