M32CSLASH8B datasheet(341/406 Pages) RENESAS

341 / 406 page

NOTE:

1. In this example, a selector controls the input voltage applied to CNVSS to switch between single-chip mode and

standard serial I/O mode.

Data output

Monitor output

TXD

SCLK

BUSY

RXD

Data input

MCU

VCC2

NMI

VCC1

CNVSS

VCC1

RESET

Reset input

User reset signal

VCC1

CE(P5_0)

EPM(P5_5)

Under development

M32C/8B Group

23. Flash Memory

Preliminary specification

Specifications in this manual are tentative and subject to change.

REJ09B0450-0050 Rev.0.50 Oct 31, 2008

Page 324 of 385

23.6.2.1

Pin Handling in Standard Serial I/O Mode

Figure 23.18 shows an example of a pin handling in standard serial I/O mode 1. Figure 23.19 shows an example

of a pin handling 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 since controlled pins vary depending on the serial programmer.

Figure 23.18

Pin Handling in Standard Serial I/O Mode 1

Figure 23.19

Pin Handling in Standard Serial I/O Mode 2

NOTES:

1. Control pins and external circuit vary depending on the programmer. Refer to the user's manual of the programmer for

information.

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. If there is a possibility the user reset signal becomes "L" in standard serial I/O mode 1, break the connection between

the user reset signal and the RESET pin by using such as a jumper selector.

Clock input

Data output

VCC1

BUSY output

TXD

SCLK

BUSY

RXD

Data input

RESET

Reset input

User reset signal

VCC1

MCU

CE(P5_0)

VCC2

EPM(P5_5)

NMI

VCC1

CNVSS

VCC1

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