upd70f3017ay Renesas Electronics Corporation., upd70f3017ay Datasheet - Page 416

• Manufacturer Part Number: upd70f3017ay
• Description: V850/sa1tm 32-/16-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

416
The voltage applied to the V
• Hold the voltage applied to the V
• The V
Cautions 1. Apply 0 V to the V
the flash memory is being manipulated.
complete.
V850/SA1
PP
(V
2. Implement self-programming in single-chip mode.
3. Apply the voltage to the V
4. If both writing and erasing are executed by using the self-programming function and flash
PP
voltage must be stable from before manipulation of the flash memory starts until manipulation is
V
= 7.8 ±0.3 V)
DD
memory programmer on the target board, be sure to communicate with the programmer
using CSI0 (do not use the handshake-supporting CSI and UART0).
= 3.3 ±0.3 V
Output port
Figure 16-16. Example of Self-Programming Circuit Configuration
V
V
DD
SS
V
RESET signal
PP
PP
Figure 16-17. Timing to Apply Voltage to V
V
pin must satisfy the following conditions.
PP
signal
PP
PP
pin when reset is released.
pin at 0 V in the normal operation mode and hold the V
CHAPTER 16 FLASH MEMORY
V
0 V
V
0 V
10 kΩ
≥ 10 kΩ
DD
PP
User’s Manual U12768EJ4V1UD
PP
pin in the entry program.
Flash memory
manipulation
OUTPUT
ON/OFF
IC for power supply
PP
Pin
INPUT
V
SS
PP
voltage only while
V
IN