UPD78F0034A NEC, UPD78F0034A Datasheet - Page 22

• Manufacturer Part Number: UPD78F0034A
• Description: 8 Bit Single Chip Microcontroller
• Manufacturer: NEC

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6.2 Flash Memory Programming Functions
operations according to the selected communication mode. Table 6-3 shows major functions of flash memory
programming.
6.3 Connection of Flashpro III
(3-wire serial I/O, UART, pseudo 3-wire serial I/O, and I
shown in Figures 6-2 to 6-5, respectively.
Reset
Batch verify
Batch erase
Batch blank check
High-speed write
Continuous write
Status
Oscillation frequency setting
Erase time setting
Baud rate setting
I
Silicon signature read
2
C mode setting
Operations such as writing to flash memory are performed by various command/data transmission and reception
The connection of Flashpro III and the µ PD78F0034A or 78F0034AY differs according to the communication mode
Function
Remark µ PD78F0034A:
Figure 6-2. Connection of Flashpro III in 3-Wire Serial I/O Mode
Table 6-3. Major Functions of Flash Memory Programming
Flashpro III
Used to stop write operation and detect transmission cycle.
Compares the entire memory contents with the input data.
Erases the entire memory contents.
Checks the deletion status of the entire memory.
Performs write to the flash memory based on the write start address and the number of data
to be written (number of bytes).
Performs continuous write based on the information input with high-speed write operation.
Used to confirm the current operating mode and operation end.
Sets the frequency of the resonator.
Sets the memory erase time.
Sets the communication rate for UART mode
Sets standard/high-speed mode for I
Outputs the device name and memory capacity, and device block information.
µ PD78F0034AY: n = 0
RESET
GND
VDD
SCK
VPP
SO
SI
Data Sheet U14040EJ4V0DS
n = 0, 1
2
C bus). The connection for each communication mode is
2
C bus mode
Description
V
V
RESET
SCK3n
SO3n
V
SI3n
PP
DD
SS
µ
µ
PD78F0034AY
PD78F0034A,
µ PD78F0034A, 78F0034AY