UPD178F098GF-3BA NEC [NEC], UPD178F098GF-3BA Datasheet - Page 23

• Manufacturer Part Number: UPD178F098GF-3BA
• Description: 8-BIT SINGLE-CHIP MICROCONTROLLER
• Manufacturer: NEC [NEC]

6. FLASH MEMORY PROGRAMMING
target system.
6.1 Selecting Communication Mode
mode from those listed in Table 6-1. To select a communication mode, the format shown in Figure 6-1 is used. Each
communication mode is selected depending on the number of V
3-wire serial I/O (SIO3)
UART0
The program memory provided in the PD178F098 is flash memory.
The flash memory can be written on-board, i.e., with the PD178F098 mounted on the target system.
To do so, connect a dedicated flash writer (Flashpro III (Part number FL-PR3, PG-FP3)) to the host machine and
Remark FL-PR3 is a product of Naito Densei Machida Mfg. Co., Ltd.
The flash memory is written by using Flashpro III and by means of serial communication. Select a communication
Caution Be sure to select a communication mode by the number of V
Communication Mode
V
RESET
PP
GND
GND
10 V
V
V
DD
DD
Figure 6-1. Communication Mode Selection Format
1
1
Number of Channels
Table 6-1. Communication Modes
Data Sheet U12920EJ1V0DS00
SI3/P70
SO3/P71
SCK3/P72
RXD0/P74
TXD0/P75
Flash memory writing mode
V
PP
PP
pulse
pulses shown in Table 6-1.
Pins Used
PP
pulses shown in Table 6-1.
0
8
Number of V
PD178F098
PP
Pulses
23