參數(shù)資料
型號: μPD78F9177Y
廠商: NEC Corp.
英文描述: 8 Bit Single Chip Microcontrollers(8 位單片微控制器)
中文描述: 8位單片機微控制器(8位單片微控制器)
文件頁數(shù): 113/150頁
文件大?。?/td> 653K
代理商: ΜPD78F9177Y
Preliminary Product Information
111
μ
PD78F9177Y
10. FLASH MEMORY PROGRAMMING
Flash memory is used as the built-in program memory of the
μ
PD78F9177Y.
The flash memory can be written even while the device is mounted in the target system (on-board write). To write
a program into the flash memory, connect the dedicated flash writer (Flashpro II (Model number: FL-PR II)) to both
the host machine and target system.
Remark
The Flashpro II (formerly, Flashpro) is manufactured by Naito Densei Machida Mfg. Co., Ltd.
10.1 Selecting the Transmission Method
The Flashpro II writes into flash memory by means of serial transmission. The transmission method to be used for
writing is selected from those listed in Table 10-1. To select a transmission method, use the format shown in Figure
10-1, according to the number of V
PP
pulses listed in Table 10-1.
Table 10-1. Transmission Methods
Transmission method
Pins
Number of V
PP
pulses
3-wire serial I/O
SCK20/ASCK20/P20
SO20/TxD20/P21
SI20/RxD20/P22
0
SMB
SCL0/P23
SDA0/24
4
UART
TxD20/SO20/P21
RxD20/SI20/P22
8
Pseudo 3-wire mode
Note
P00 (serial clock input)
P01 (serial data input)
P02 (serial data output)
12
Note
Serial transfer by controlling the ports using software
Caution To select a transmission method, always use the corresponding number of V
PP
pulses listed in
Table 10-1.
Figure 10-1. Format of Transmission Method Selection
V
DD
V
SS
10 V
1
2
n
V
PP
V
DD
V
SS
RESET
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