參數(shù)資料
型號： μPD78F4225Y
廠商： NEC Corp.
英文描述： 16 Bit Single Chip Microcontrollers(16 位單片微控制器)
中文描述： 16位單片機微控制器（16位單片微控制器）
文件頁數(shù)： 17/30頁
文件大小： 205K
代理商： ΜPD78F4225Y
17
μ
PD78F4225Y
6. PROGRAMMING FLASH MEMORY
The flash memory can be written with the
μ
PD78F4225Y mounted on the target board (on-board). To do so,
connect a dedicated flash writer (Flashpro II) to the host machine and target system.
Remark
Flashpro II is a product of Naito Densei Machida Mfg. Co., Ltd.
6.1 Selecting Communication Mode
To write the flash memory, use Flashpro II and serial communication. Select a serial communication mode from
those listed in Table 6-1 in the format shown in Figure 6-1. Each communication mode is selected by the number
of V
PP
pulses shown in Table 6-1.
Table 6-1. Communication Modes
Communication Mode
Number of Channels
Pins Used
Number of V
PP
Pulses
3-wire serial I/O
3
SCK0/SCL0/P27
SO0/P26
SI0/SDA0/P25
0
SCK1/ASCK1/P22
SO1/TxD1/P21
SI1/RxD1/P20
1
SCK2/ASCK2/P72
SO2/TxD2/P71
SI2/RxD2/P70
2
I
2
C bus
1
SCL0/SCK0/P27
SDA0/SI0/P25
4
UART
2
TxD1/SO1/P21
RxD1/SI1/P20
8
TxD2/SO2/P71
RxD2/SI2/P70
9
Psendo-3-wire serial
I/O
Note
1
P32/TO2
(serial clock I/O)
P31/TO1
(serial data output)
P30/TO0
(serial data output)
12
Note
Performs serial transfer by controlling port by software.
Caution
Be sure to select a communication mode with the number of V
PP
pulses shown in Table 6-1.
Figure 6-1. Communication Mode Selecting Format
1
2
n
10 V
V
DD
V
SS
V
PP
V
DD
V
SS
RESET
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