PD178016GC-051_15 Datasheet, PDF (8/96 Pages) Renesas Technology Corp – 8-BIT SINGLE-CHIP MICROCONTROLLER WITH BUILT-IN PRESCALER, PLL FREQUENCY SYNTHESIZER, AND IF COUNTER FOR AUTOMOTIVE FM/MW/LW RADIO APPLICATIONS

µPD178016GC-051
CONTENTS
1. PIN FUNCTIONS ................................................................................................................................ 8
2. KEY MATRIX STRUCTURE ............................................................................................................. 16
2.1 Configuration of Initial Setting Diode Matrix and Transistor Switch ...................................................... 16
2.2 Connection between Initial Setting Diode Matrix and Transistor Switch ............................................... 16
2.3 Momentary Key Matrix Configuration ...................................................................................................... 17
2.4 Momentary Key Matrix Connection ......................................................................................................... 18
2.5 Description of the Key Matrixes .............................................................................................................. 19
2.5.1 Initial setting diode matrix ............................................................................................................ 19
2.5.2 Transistor switch .......................................................................................................................... 24
2.5.3 Momentary keys ........................................................................................................................... 25
3. RDS (RADIO DATA SYSTEM) FUNCTIONS .................................................................................. 37
3.1 Processing RDS Data .............................................................................................................................. 37
3.1.1 PI (Program Identification) ........................................................................................................... 37
3.1.2 PS (Program Service Name) ....................................................................................................... 37
3.1.3 PTY (Program Type) .................................................................................................................... 37
3.1.4 RDS memory ................................................................................................................................ 38
3.1.5 AF (Alternative Frequency) ......................................................................................................... 39
3.1.6 Best station .................................................................................................................................. 46
3.1.7 Automatic station selection .......................................................................................................... 47
3.1.8 Emergency broadcasting reception ............................................................................................. 48
3.1.9 EON (Enhanced Other Network) ................................................................................................. 49
3.1.10 TP (Traffic Program Identification), TA (Traffic Announcement Identification) .......................... 49
3.1.11 CT (Clock Time and Data) ........................................................................................................... 50
4. SELECTOR CONTROL .................................................................................................................... 51
4.1 Timing of Transition from POWER ON to OFF, and Vice Versa, with the POWER Key .................... 51
4.2 Timing of Transition from POWER ON to OFF, Vice Versa, with the Detachable Panel ..................... 52
4.3 Timing of Audio Mode Switching ............................................................................................................. 53
4.4 Timing of Audio Mode Switching while Traffic Information Is Being Broadcast (in TP/SK Mode) ....... 54
4.5 Detection of Front Panel Detachment ..................................................................................................... 55
4.6 Timing of Audio Mode Switching Timing with PTY Alarm (PTY = 31) ................................................... 56
5. LCD PANEL ...................................................................................................................................... 57
5.1 Configuration of the LCD Panel .............................................................................................................. 57
5.2 Assignment of LCD Pins .......................................................................................................................... 57
5.3 LCD Panel Displays ................................................................................................................................. 60
6. DESCRIPTION OF µPD16431A CONTROL ................................................................................... 65
6.1 Key Scan .................................................................................................................................................. 65
6.2 Initial Data Output .................................................................................................................................... 66
6.3 Display Data Output ................................................................................................................................. 66
6.4 Key Data Input/Output ............................................................................................................................. 67
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