UPD78F4216A Datasheet, PDF (23/60 Pages) NEC – MOS INTEGRATED CIRCUIT

µPD78F4216A, 78F4218A, 78F4216AY, 78F4218AY
Figure 6-1. Communication Mode Selecting Format
VPP
RESET
10 V
VDD
VSS
VDD
VSS
VPP pulses
12
n
Flash programming mode
6.2 Flash Memory Programming Function
The flash memory is written by transferring or receiving commands and data in a selected communication mode.
The major functions of flash memory programming are listed in Table 6-2.
Table 6-2. Major Functions of Flash Memory Programming
Function
Batch erasure
Block erasure
Batch blank check
Block blank check
Data write
Batch verify
Block verify
Description
Erases all contents of memory.
Erases contents of specified memory block with one memory block
consisting of 16 KB.
Checks erased status of entire memory.
Checks erased status of specified block.
Writes flash memory based on write start address and number of
data to be written (in bytes).
Compares all contents of memory with input data.
Compares contents of specified memory block with input data.
Data Sheet U14125EJ1V0DS00
23