Flash Memory Programming Function - NEC 78K0/KD1 Series User Manual

RESET

25.2.2 Flash memory programming function

Flash memory writing is performed via command and data transmit/receive operations using the selected
communication mode. The main functions are listed in Table 25-4.
Function
Reset
Batch verify
Batch erase
Batch blank check
High-speed write
Continuous write
Status
Oscillation frequency setting
Erase time setting
Baud rate setting
Silicon signature read
CHAPTER 25 µ µ µ µ PD78F0124
Figure 25-2. Communication Mode Selection Format
10 V
V
V
DD
PP
V
SS
V
DD
V
SS
Table 25-4. Main Functions of Flash Memory Programming
Used to detect write stop and transmission synchronization.
Compares entire memory contents and input data.
Erases the entire memory contents.
Checks the erase status of the entire memory.
Performs writing to flash memory according to write start address and number of write data
(bytes).
Performs successive write operations using the data input with high-speed write operation.
Checks the current operation mode and operation end.
Inputs the resonator oscillation frequency information.
Inputs the memory erase time.
Sets the communication rate when the UART mode is used.
Outputs the device name, memory capacity, and device block information.
Preliminary User's Manual U16315EJ1V0UD
V pulses
PP
Flash memory write mode
Description
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