Pin Connection - NEC V850ES/KE1+ User Manual

32-bit single-chip microcontrollers
Table of Contents

Advertisement

26.4.6 Pin connection

When performing on-board writing, mount a connector on the target system to connect to the dedicated flash
programmer. Also, incorporate a function on-board to switch from the normal operation mode to the flash memory
programming mode.
In the flash memory programming mode, all the pins not used for flash memory programming become the same
status as that immediately after reset.
acknowledge the status immediately after a reset.
(1) FLMD0 pin
In the normal operation mode, input a voltage of V
programming mode, supply a write voltage of V
Because the FLMD0 pin serves as a write protection pin in the self programming mode, a voltage of V
must be supplied to the FLMD0 pin via port control, etc., before writing to the flash memory. For details, refer
to 26.5.5 (1) FLMD0 pin.
CHAPTER 26 FLASH MEMORY
Therefore, pin handling is required when the external device does not
DD
Figure 26-10. FLMD0 Pin Connection Example
V850ES/KE1+
Dedicated flash programmer connection pin
FLMD0
Pull-down resistor (R
User's Manual U16896EJ2V0UD
level to the FLMD0 pin.
SS
level to the FLMD0 pin.
)
FLMD0
In the flash memory
level
DD
641

Advertisement

Table of Contents
loading

This manual is also suitable for:

?pd70f3302?pd703302?pd70f3302y?pd703302y

Table of Contents