Programming Environment; Communication Mode - NEC V850/SB1 User Manual

18.3 Programming Environment

The following shows the environment required for writing programs to the flash memory of the V850/SB1 and
V850/SB2.
Figure 18-3. Environment Required for Writing Programs to Flash Memory
A host machine is required for controlling the dedicated flash programmer.
UART0 or CSI0 is used for the interface between the dedicated flash programmer and the V850/SB1 or V850/SB2
to perform writing, erasing, etc. A dedicated program adapter (FA Series) required for off-board writing.

18.4 Communication Mode

The communication between the dedicated flash programmer and the V850/SB1 or V850/SB2 is performed by
serial communication using UART0 or CSI0 of the V850/SB1, V850/SB2 .
(1) UART0
Transfer rate: 4800 to 76800 bps
Figure 18-4. Communication with Dedicated Flash Programmer (UART0)
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CHAPTER 18
RS-232C
Dedicated flash programmer
Host machine
V
PP
V
DD
GND
RESET
RXD
Dedicated flash
TXD
programmer
User's Manual U13850EJ6V0UD
FLASH MEMORY
V
PP
V
DD
V
SS
RESET
UART/CSI
V850/SB1,
V850/SB2
V
PP
V
DD
V
SS
RESET
TXD0
V850/SB1,
V850/SB2
RXD0