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參數資料
| 型號： | UPD780338 |
| 廠商： | NEC Corp. |
| 元件分類： | 8位微控制器 |
| 英文描述： | 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash |
| 中文描述： | 8位微控制器與2/4/8K字節(jié)在系統(tǒng)可編程閃存 |
| 文件頁數： | 22/66頁 |
| 文件大?。?/td> | 565K |
| 代理商： | UPD780338 |
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μ
PD78F0034A, 78F0034AY
22
Data Sheet U14040EJ4V0DS
6.2 Flash Memory Programming Functions
Operations such as writing to flash memory are performed by various command/data transmission and reception
operations according to the selected communication mode. Table 6-3 shows major functions of flash memory
programming.
Table 6-3. Major Functions of Flash Memory Programming
Function
Description
Reset
Used to stop write operation and detect transmission cycle.
Batch verify
Compares the entire memory contents with the input data.
Batch erase
Erases the entire memory contents.
Batch blank check
Checks the deletion status of the entire memory.
High-speed write
Performs write to the flash memory based on the write start address and the number of data
to be written (number of bytes).
Continuous write
Performs continuous write based on the information input with high-speed write operation.
Status
Used to confirm the current operating mode and operation end.
Oscillation frequency setting
Sets the frequency of the resonator.
Erase time setting
Sets the memory erase time.
Baud rate setting
Sets the communication rate for UART mode
I
2
C mode setting
Sets standard/high-speed mode for I
2
C bus mode
Silicon signature read
Outputs the device name and memory capacity, and device block information.
6.3 Connection of Flashpro III
The connection of Flashpro III and the
μ
PD78F0034A or 78F0034AY differs according to the communication mode
(3-wire serial I/O, UART, pseudo 3-wire serial I/O, and I
2
C bus). The connection for each communication mode is
shown in Figures 6-2 to 6-5, respectively.
Figure 6-2. Connection of Flashpro III in 3-Wire Serial I/O Mode
Remark
μ
PD78F0034A:
μ
PD78F0034AY: n = 0
n = 0, 1
Flashpro III
V
PP
VPP
VDD
V
SS
V
DD
RESET
SCK3n
SI3n
SO3n
RESET
SCK
SO
SI
GND
PD78F0034A,
PD78F0034AY
μ
μ
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