M16CSLASH29 datasheet(382/499 Pages) RENESAS

382 / 499 page

20. Flash Memory Version

page 358

SCLK input

BUSY output

TxD output

RxD input

BUSY

SCLK

TXD

CNVss

P86(CE)

RESET

RxD

Reset input

User reset

singnal

MCU

(1) Controlling pins and external circuits vary with the serial programmer. For more

information, refer to the user's manual included with the serial programmer.

(2) In this example, a selector controls the input voltage applied to CNVss to switch

between single-chip mode and standard serial I/O mode.

(3) In standard serial input/output mode 1, if the user reset signal becomes “L” while

the MCU is communicating with the serial programmer, break the connection

between the user reset signal and the RESET pin using a jumper switch.

P85(RP)

(1)

NOTE:

1. Set the following, either or both.

- Connect the CE pin to Vcc

- Connect the RP pin to Vss and the P16 pin to Vcc

(1)

P16

20.9.2 Example of Circuit Application in Standard Serial I/O Mode

Figure 20.17

shows an example of a circuit application in standard serial I/O mode 1 and Figure 20.18

shows an example of a circuit application in standard serial I/O mode 2. Refer to the user's manual of your

serial programmer to handle pins controlled by the serial programmer.

Figure 20.17 Circuit Application in Standard Serial I/O Mode 1

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