upd70f3017ay Renesas Electronics Corporation., upd70f3017ay Datasheet - Page 407
upd70f3017ay
Manufacturer Part Number
upd70f3017ay
Description
V850/sa1tm 32-/16-bit Single-chip Microcontroller
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD70F3017AY.pdf
(492 pages)
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16.5 Pin Connection
programmer. Also, incorporate a function on-board to switch from the normal operation mode to the flash memory
programming mode.
become the same status as that immediately after reset. Therefore, all the ports become output high-impedance
status, so that pin handling is required when the external device does not acknowledge the output high-impedance
status.
16.5.1 V
voltage is supplied to V
16.5.2 Serial interface pin
board, care should be taken to avoid conflict of signals and malfunction of the other devices, etc.
When performing on-board writing, install a connector on the target system to connect to the dedicated flash
When switched to the flash memory programming mode, all the pins not used for the flash memory programming
In the normal operation mode, 0 V is input to V
The following shows the pins used by each serial interface.
When connecting a dedicated flash programmer to a serial interface pin that is connected to other devices on-
PP
pin
PP
pin. The following shows an example of the connection of V
V850/SA1
CSI0
CSI0 + HS
UART0
Table 16-4. Pins Used by Each Serial Interface
V
Figure 16-7. Connection Example of V
PP
Serial Interface
CHAPTER 16 FLASH MEMORY
User’s Manual U12768EJ4V1UD
PP
Pull-down resistor (R
Dedicated flash programmer connection pin
pin. In the flash memory programming mode, 7.8 V writing
SO0, SI0, SCK0
SO0, SI0, SCK0, P15
TXD0, RXD0
Pins Used
VPP
)
PP
Pin
PP
pin.
407
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