M38047FEHKP datasheet(190/387 Pages) RENESAS

190 / 387 page

2-66

APPLICATION

2.4 Serial interface

Rev.1.00 Jan 14, 2005

REJ09B0212-0100Z

3804 Group (Spec.H)

(2)

Output of serial data (control of peripheral IC)

Outline : 4-byte data is transmitted and received, using the clock synchronous serial I/O.

The CS signal is output to a peripheral IC through port P63.

Figure 2.4.25 shows connection diagrams of example for using serial I/O1 and example for using

serial I/O2 with the same specification, and Figure 2.4.26 shows a timing chart.

Fig. 2.4.25 Connection diagrams

Specifications : • Serial I/O is used (clock synchronous serial I/O is selected.)

• Synchronous clock frequency : 125 kHz (f(XIN) = 4 MHz is divided by 32)

• Transfer direction : LSB first

• The Serial I/O interrupt is not used.

• Port P63 is connected to the CS pin (“L” active) of the peripheral IC for transmission

control; the output level of port P63 is controlled by software.

Fig. 2.4.26 Timing chart (serial I/O1)

P63

Peripheral IC

(1) Example for using Serial I/O1

DATA

CLK

DATA

TXD1

SCLK1

P63

Peripheral IC

(2) Example for using Serial I/O2

DATA

CLK

DATA

SOUT2

SCLK2

3804 group

(Spec. H)

3804 group

(Spec. H)

DO0

DO1

DO2

DO3

CLK

DATA

Note: When using serial I/O2, the SOUT2 pin becomes the high-impedance state

after transfer is completed.

M38047FEHKP 数据表(PDF) 190 Page - Renesas Technology Corp

M38047FEHKP 数据表(HTML) 190 Page - Renesas Technology Corp

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

数据表下载

链接网址

M38047FEHKP 数据表(PDF) 190 Page - Renesas Technology Corp

M38047FEHKP 数据表(HTML) 190 Page - Renesas Technology Corp

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

数据表 下载

链接网址

数据表下载