M38045FFHKP datasheet(287/387 Pages) RENESAS

287 / 387 page

2-163

APPLICATION

2.13 Flash memory mode

Rev.1.00 Jan 14, 2005

REJ09B0212-0100Z

3804 Group (Spec.H)

➀ When control signals are not affected to user system circuit

When the control signals in the standard serial I/O mode are not used or not affected to the user

system circuit, they can be connected as shown in Figure 2.13.7.

Fig. 2.13.7 Connection example in standard serial I/O mode (1)

➁ When control signals are affected to user system circuit-1

Figure 2.13.8 shows an example that the jumper switch cut-off the control signals not to supply

to the user system circuit in the standard serial I/O mode.

Fig. 2.13.8 Connection example in standard serial I/O mode (2)

M38049FFHSP/FP/HP/KP

RESET

CNVSS

TXD(P45)

SCLK1(P46)

RXD(P44)

BUSY(P47)

VSS

VCC

AVSS

Target board

Not used or to user system circuit

✽1

User reset signal (Low active)

✽1: When not used, set to input mode and pull up or pull down, or set to output mode and open.

✽2: It is necessary to apply Vcc to SCLK1 (P46) pin only when reset is released in the serial I/O mode 1.

It is necessary to apply Vss to SCLK1 (P46) pin only when reset is released in the serial I/O mode 2.

✽2

XIN

XOUT

M38049FFHSP/FP/HP/KP

RESET

CNVSS

TXD(P45)

SCLK1(P46)

RXD(P44)

BUSY(P47)

VSS

VCC

AVSS

Target board

To user system circuit

User reset signal (Low active)

✽: It is necessary to apply Vcc to SCLK1 (P46) pin only when reset is released in the serial I/O mode 1.

It is necessary to apply Vss to SCLK1 (P46) pin only when reset is released in the serial I/O mode 2.

✽

XIN

XOUT

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