M37221M4H_15 Datasheet, PDF(32/114 Page) Renesas Technology Corp – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER

English

English German Russian Spanish Italian Polish Chinese Japanese Korean French Portuguese	Language :

M37221M4H_15 Datasheet, PDF (32/114 Pages) Renesas Technology Corp – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER

◁

M37221M4H/M6H/M8H/MAHâXXXSP/FP M37221EASP/FP

8.5.1 Serial I/O Common Transmission/Recep-

tion mode

By writing â1â to bit 6 of the serial I/O mode register, signals SIN and

SOUT are switched internally to be able to transmit or receive the

serial data.

Figure 8.5.4 shows signals on serial I/O common transmission/re-

ception mode.

Note: When receiving the serial data after writing âFF16â to the serial I/O regis-

ter.

SCLK

SOUT

SIN

SM : Serial I/O mode register

â1â

â0â

SM6

Clock

Serial I/O shift register (8)

Fig. 8.5.4 Signals on Serial I/O Common Transmission/Reception Mode

Rev.1.00 Oct 01, 2002 page 30 of 110

REJ03B0134-0100Z

▷