NEC mPD780973 Series, Preliminary User'S Manual

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CHAPTER 22
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PD78F0974
22.2.2 Flash memory programming function
Flash memory writing is performed through command and data transmit/receive operations using the selected
transmission method. The main functions are listed in Table 22-4.
Table 22-4. Main Functions of Flash Memory Programming
Function Description
Reset Detects write stop and transmission synchronization.
Batch verify Compares entire memory contents and input data.
Batch delete Deletes the entire memory contents.
Batch blank check Checks the deletion status of the entire memory.
High-speed write Performs writing to flash memory according to write start address and number of write data
(bytes).
Continuous write Performs successive write operations using the data input with high-speed write operation.
Status Checks the current operation mode and operation end.
Oscillation frequency setting Inputs the resonator oscillation frequency information.
Delete time setting Inputs the memory delete time.
Baud rate setting Sets the transmission rate when the UART method is used.
Silicon signature read Outputs the device name, memory capacity, and device block information.
22.2.3 Flashpro II connection
Connection of Flashpro II and the
µ
PD78F0974 differs depending on transmission method (3-wire serial I/O, UART,
and pseudo 3-wire serial I/O). Each case of connection shows in Figures 22-3, 22-4, and 22-5.
Figure 22-3. Flashpro II Connection Using 3-Wire Serial I/O Method
V
PP
V
DD
RESET
SCK
SO
SI
GND
V
PP
V
DD
RESET
SCK
SI
SO
V
SS
Flashpro II PD78F0974
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